APPENDICES

Previous
Sir William Willcocks
Tables Pages
A. I. Areas of the catchment basins of the Nile 119
B. II. Slopes of the Nile in its different reaches 120
C. III and IV. Velocities of the Nile in its different reaches 121
D. V to X. Distances of places on the Nile from each other 123
E. XI and XII. Details of observed discharges 129
F. XIII to XXIII. Observed discharges referred to gauges 131
G. XXIV. Mean discharges of the Nile tributaries in 1902, 1903 and 1904 139
H. XXV. Maximum and minimum discharges in 1902 and 1903 141
I. XXVI. Monthly discharges at Khartoum, AssuÂn and Cairo 142
J. XXVII to XL. Discharge tables for the different gauges on the Nile 143
K. XLI to LII. Detailed information about the Nile, AssuÂn to Cairo 153
L. LIII to LXIX. Gauges of the Nile and its tributaries 167
M. LXX and LXXI. AssuÂn and Cairo gauges, metres corresponding to pics 209
N. LXXII and LXXIII. Table converting cubic metres per day to cubic metres per second and vice versa 211
P. LXXIV. Bombay rainfall referred to the AssuÂn gauge 213
Q. LXXV to LXXXI. Meteorological data in the Nile Valley 214

N.B.—In Appendix L, the gauges are recorded in two different methods. If the fall or rise of water surface is gradual throughout the year, the gauges are recorded in five daily intervals. If, on the other hand, the rise and fall is gradual for the first four and last three months of the year, but the changes are abrupt in the remaining five months, the gauges are recorded in five daily intervals for seven months and daily for five months.

[118]
[119]

Appendix A.

Table I.—Areas of Catchment Basins of the Nile.

River. Area
in square Kilometres
Area. Total. Grand
Total.
Victoria Nile at Ripon Falls 244,000 244,000 ...
Additional area drained into Lake Albert 135,000 ... ...
Albert Nile at outlet of Lake Albert ... 379,000 ...
Albert Nile from Albert Lake to Gondokoro 94,000 ... ...
Albert Nile at Gondokoro ... 473,000 ...
Albert Nile, Gondokoro to above Sobat mouth 202,000 ... ...
Gazelle River 240,000 ... ...
Arab River 231,000 ... ...
673,000
Albert Nile above Sobat River mouth ... 1,136,000 ...
Saubat River 156,000 ... ...
White Nile below Sobat River mouth ... 1,292,000 ...
White Nile, Sobat River to Khartoum 393,000 ... ...
White Nile at Khartoum ... 1,685,000 1,685,000
Blue Nile in Abyssinian Hills and foot hills 247,000 ... ...
Blue Nile foot hills to Khartoum 53,000 ... ...
Total Blue Nile ... 300,000 ...
Nile at Khartoum ... ... 1,985,000
Nile between Khartoum and Atbara junction 54,000 ... ...
Nile above Atbara junction ... ... 2,049,000
Atbara River in Abyssinian hills and foot hills 131,000 ... ...
Atbara River foothills to mouth 106,000 ... ...
Total Atbara River ... 237,000 ...
Nile below Atbara junction ... ... 2,286,000
Lybian Desert from Atbara junction to Sea 335,000 ... ...
Arabian Desert from Atbara junction to Sea 386,000 ... ...
Total Desert Area ... 721,000 ...
Nile from its sources to its mouths ... ... 3,007,000
3,007,000

Appendix B.

Table II.—Slope of the Nile in flood from the Ripon Falls to the Sea.

River. From To Distance in
kilomÈtres.		 Fall in
metres.		 Slope.
Victoria Nile Ripon Falls Kakoji 64 57 1/1200
„ Kakoji Fowera 237 12 1/20000
„ Fowera Murchison Falls 68 377 1/180
„ Murchison Falls Lake Albert 30 3 1/10000
Albert Nile Lake Albert Dufile 218 8 1/25000
„ Dufile Fort Berkeley 155 223 1/700
„ Fort Berkeley BÔr 206 18 1/12000
„ BÔr Gaba Shamba 196 10 1/20000
„ Gaba Shamba Lake NÔ 380 16 1/25000
„ Lake NÔ Sobat 134 2 1/75000
White Nile Sobat 300 kilom. South
of Khartum		 538 11 1/50000
„ 300 kilom. South
of Khartum		 Khartum 300 3 1/100000
The Nile. Khartum Shabluka 86 5 1/17000
6th Cataract 18 6 1/3000
„ 6th Cataract 5th Cataract 285 17 1/17000
„ 160 55 1/3000
„ 5th Cataract 4th Cataract 97 9 1/11000
„ 110 49 1/2250
„ 4th Cataract 3rd Cataract 313 26 1/12000
„ 80 11 1/7250
„ 3rd Cataract 2nd Cataract 110 17 1/6500
„ 200 66 1/3000
„ Wadi Haifa 1st Cataract 345 28 1/12500
„ 5 6 1/800
„ AssuÂn Barrage 964 75·4 1/13000
„ Barrage Mediterranean Sea 236 18·6 1/12500
5535 1129 1/5000

Appendix C.

Table III.—Velocity of the Nile in its different reaches.

Name of
River.		 From To Dis-
tance
in
kilo-
metres.		 VELOCITY
IN
METRES
PER SEC.		 VELOCITY
IN
KILO-
METRES
PER DAY.		 TIME
IN WHICH
THE WATER
TRAVELS
IN DAYS.
in
flood.		 in low
supply.		 in
flood.		 in low
supply.		 in
flood.		 in low
supply.
Victoria Nile. Ripon Falls Kakoji 64 1·2 1·2 100 100 ·7 ·7
„ Kakoji Lake Choga 47 ·7 ·6 60 50 ·8 ·9
Lake Choga 80 .. .. .. .. .. ..
„ Lake Choga Fowera 110 ·7 ·6 60 50 1·8 2·2
„ Fowera Murchison Falls 68 1·2 1·2 100 100 ·7 ·7
„ Murchison Falls Lake Albert 30 ·9 ·7 80 60 ·4 ·5
Lake Albert 10 .. .. .. .. .. ..
Albert Nile. Lake Albert Dufile 218 ·7 ·6 60 50 3·6 4·4
„ Dufile Fort Berkeley 155 ·9 ·7 80 60 1·9 2·6
„ Fort Berkeley BÔr 206 1·2 ·9 100 75 2·1 2·7
„ BÔr Gaba Shamba 196 ·9 ·7 80 60 2·4 3·2
„ Gaba Shamba Lake NÔ 380 ·6 ·6 50 50 7·6 7·6
„ Lake NÔ Sobat 134 ·35 ·35 30 30 4·5 4·5
White Nile. Sobat 300 kil. South of Khartum. 538 ·6 ·35 50 30 10·7 17·9
„ 300 kil. South of Khartum. Khartum 300 ·35 ·35 30 30 10·0 10·0
The Nile. Khartum Shabluka 86 1·6 ·8 140 70 ·6 1·2
„ 6th Cataract 18 2·3 ·8 200 100 ·1 ·2
„ 6th Cataract—5th Cataract 285 1·6 ·8 140 70 2·0 4·1
„ 5th Cataract 160 2·3 1·2 200 100 ·8 1·6
„ 5th Cataract—4th Cataract 97 1·75 ·85 150 75 ·6 1·3
„ 4th Cataract 110 2·3 1·2 200 100 ·6 1·1
„ 4th Cataract—3rd Cataract 313 1·75 ·85 150 75 2·1 4·2
„ 3rd Cataract 80 2·1 1·0 180 90 ·4 ·9
„ 3rd Cataract—2nd Cataract 110 2·1 1·0 180 90 ·6 1·2
„ 2nd Cataract 200 2·3 1·2 200 100 1·0 2·0
„ Wady Haifa—1st Cataract 345 1·75 ·85 150 75 2·3 4·6
„ 1st Cataract 5 2·3 1·2 200 100 0·02 0·05
„ AssuÂn—Barrage 964 1·75 ·85 150 75 6·4 13·0
Rosetta Branch. Barrage—Mediterranean Sea 236 1·75 ·85 150 75 1·6 2·2

Table IV.—Time water travels along the Nile.

From To Days Distance
in
kilo-
metres.
in
flood.		 in low
supply.
Lake Victoria Lake Choga 2 2 111
Lake Choga .. .. 80
Lake Choga Lake Albert 3 3 209
Lake Albert .. .. 9
Lake Albert Gondokoro 6 7 403
Gondokoro Sobat 16 18 885
Sobat Khartum 21 28 838
Khartum Assuan 11 22 1,804
Assuan Cairo 6 12 945
Lake Albert Cairo 60 87 4,875

Appendix D.
DISTANCE FROM THE SEA TO CAIRO, CAIRO TO ASSUAN, ASSUAN TO KHARTUM, KHARTUM TO GONDOKORO AND GONDOKORO TO THE RIPON FALLS, AND BACK.

Tables V and VI.—Distances in kilometres from the Barrage to the sea down the Damietta and Rosetta branches, and vice-versa, measured on the steamer track or Deep Channel in kilometres.

Name of Place. Distance
from
Barrage.		 Distance
from
Sea.		 Name of Place. Distance
from
Barrage.		 Distance
from
Sea.
Damietta Branch. Rosetta Branch.
Birshams 23 213 Ashmun 23 213
Benha 51 185 Geres 31 205
Mitbera 62 174 Khatatbeh 45 191
Zifta 88 148 GizaÏ 63 173
SamanÛd 124 112 Tenoub 95 141
Mansurah 142 94 Kafr Zayat 119 117
Sherbin 168 68 Kuddabah 140 96
Ras el Khalig (Station) 182 54 Shibrakhit 154 82
Mit Abu Ghaleb 194 42 Dessouk 168 68
Faraskur 203 33 Fuah 181 55
Damietta 221 15 AtfÉ 184 52
Sea 236 0 Rosetta 221 15
Sea 236 0

Table VII.—Distances in kilometres from Barrage to Assuan and back in kilometres measured on the steamer track or Deep Channel.—Upper-Egypt.

Name of
Place.		 Distance
from
Barrage.		 Distance
from
Assuan.
Barrage 0 968
Kasr El Nil (Bridge)—Cairo 23 945
Rodah gauge 27 941
Badreshen 46 922
Aiyat 73 895
Wastah 108 860
Beni Suef 143 825
Maghagha 199 769
Minieh 268 700
Rodah 308 660
DerÜt Escape 340 628
Manfalut 377 591
Asyut 420 548
Sohag 520 448
Girga 561 407
Baliyana 579 389
Dishna 665 303
Kena 685 283
Luxor 749 219
Armant 768 200
Esna 807 161
Edfou 859 109
Gebel Silsila 898 70
Kom Ombo 925 43
Assuan 968 0

Table VIII.—Distances in kilometres from AssuÂn to Khartoum and back.

Name of
Place.		 Distance
from
Assuan.		 Distance
from
Khartoum.
Assuan (Shellal) 0 1804
Kalabsha 57 1747
Dekka 109 1695
Korosko 187 1617
Der 209 1595
Ibrim 229 1575
Toski 251 1553
Abu Simbel 283 1521
Wadi Haifa 345 1459
Kaibar 663 1141
Hannek 735 1069
Dongola 795 1009
Abu Hamed 1255 549
Berber 1460 344
Atbara 1484 320
Shendy 1621 183
Shabluka 1700 104
Khartoum 1804 0

Table IX.—Distances in kilometres from Khartoum to Gondokoro and back.

Name of
Place.		 Distance
from
Khartoum.		 Distance
from
Gondokoro.
Khartoum 0 1723
Duem 201 1522
Abou Zeid 336 1387
Gebelain 384 1339
Kaka 639 1084
Kodok 747 976
Tewfikieh 830 893
Sobat 838 885
Mouth of Zeraf 886 837
Lake No 972 751
Hillet Nuer 1177 546
Sudd Block 15 1218 505
Gaba Shambe 1352 371
Bor 1548 175
Lado 1711 12
Gondokoro 1723 0

Table X.—Distances in kilometres from Gondokoro to Ripon Falls and back.

Name of
Place.		 Distance
from
Gondokoro.		 Distance
from
Ripon Falls.
Gondokoro 0 803
Fort Berkeley 31 772
Dufile 186 617
Wadelai 331 472
Lake Albert 403 400
Murchison Falls 434 369
Fowera 501 302
Mruli 611 192
Lake Choga 691 112
Kakogi 739 64
Ripon Falls 803 0

Table XI.—Distances from Khartoum to Rosaires and back along the Blue Nile.

Name of
Place.		 Distance
from
Khartoum.		 Distance
from
Rosaires.
Khartoum 0 615
Kamlin 98 517
Rufaa 151 464
Abu-Haraz 188 427
Rahad mouth 190 425
Wad-Medani 198 417
Dinder mouth 265 350
Sennaar 343 272
Karkoj 462 153
Rosaires 615 0

Appendix E

Table XII.—Details of observed discharges from Sir W. Garstin’s report on the Basin of the Upper Nile.

River. Locality. Gauge. Date. Area
of
Section.		 Velocity
metres
per
second.		 Dis-
charge
m³
per
second.
Victoria Nile Above Ripon Falls ·51 22·1·03 2312·0 0·237 548·0
Murchison Falls .. 20·3·03 894·4 0·65 577·0
Uganda
Streams:
Ruizi .. .. 6·2·03 9·0 1·22 11·0
Nyam Gasha .. .. 16·2·03 8·9 0·55 4·9
Lukoku .. .. 24·2·03 5·4 0·53 2·8
Mbuku .. .. 25·2·03 6·1 1·16 7·1
Hima .. .. 25·2·03 1·1 0·70 0·7
Ruimi .. .. 26·2·03 5·8 0·74 4·3
Mpangu .. .. 26·2·03 3·0 0·88 2·6
Msisi .. .. 9·3·03 6·7 0·40 2·7
Ngusi .. .. 12·3·03 12·5 0·50 6·2
Kagera .. .. 26·2·03 412·0 0·35 143·0
Semliki Outlet of Lake Edward .. 18·2·03 130·0 0·70 90·0
„ Inlet of Lake Albert .. 4·3·03 121·0 0·96 116·0
Albert Nile
tributaries:
Umi .. .. 22·3·03 15·1 1·20 12·3
Asua .. .. 28·3·03 18·7 0·58 10·8
Kit .. .. .. .. .. 0
Albert Nile Wadeiai ·52 22·3·03 770·9 0·84 646·0
„ Gondokoro ·18 28·3·01 779·0 0·73 566·0
„ „ ·84 9·9·02 1033·0 0·93 960·0
„ „ ·50 1·4·03 615·0 1·07 641·0
„ „ 2·33 9·9·03 1347·0 1·37 1847·0
„ „ ·84 14·5·04 .. .. 1138·0
„ Mongalla (north of Gondokoro) .. 14·9·03 1487·0 1·44 2046·0
„ BÔr .. 16·9·03 770·0 1·14 888·0
„ „ 2·03 12·5·04 .. .. 813·0
„ North of Gaba- .. 4·9·02 498·0 0·80 398·0
„ Shamba .. 18·9·03 669·0 0·80 532·0
Albert Nile Hillet NÛr .. 1·9·03 478·0 0·78 375·0
„ „ .. 13·4·03 392·0 0·88 346·0
„ North of Hillet-NÛr .. 1·4·01 485·0 0·54 262·0
„ „ .. 2·9·02 511·0 0·65 333·0
„ South of Lake NÔ .. 14·4·00 262·0 0·84 219·0
„ „ .. 14·4·03 424·0 0·71 285·0
„ „ .. 31·8·03 441·0 0·72 318·0
„ „ .. 22·5·04 .. .. 302·0
Bahr El Gazal 28 kil. from mouth .. 30·8·03 52·0 0·23 12·0
„ 32„ .. 21·9·03 104·0 0·19 20·0
„ 33„ .. 2·4·01 149·0 0·18 27·0
„ 33„ .. 31·8·02 86·0 0·17 15·0
„ 50„ .. 15·4·03 200·0 0·20 23·0
„ 51„ .. 1·4·00 161·0 0·21 34·0
Bahr El Zeraf 8„ .. 22·9·02 240·0 0·40 97·0
„ 14„ .. 29·8·03 180·0 0·61 110·0
„ 19„ .. 3·4·01 138·0 0·24 33·0
„ 20„ .. 16·4·03 179·0 0·30 50·0
„ 20„ .. 22·9·03 232·0 0·66 158·0
„ 96„ .. 25·3·00 91·0 0·35 32·0
Albert Nile Above Sobat junction .. 30·8·02 813·0 0·41 336·0
„ „ .. 22·9·02 1054·0 0·40 419·0
„ „ .. 22·9·03 1034·0 0·44 450·0
„ „ .. 16·4·03 710·0 0·49 349·0
Sobat River 25 kil. from mouth 3·16 26·9·03 1030·0 0·87 895·0
„ 25„ 2·70 26·8·03 .. .. 769·0
„ 40„ ·10 17·4·03 414·0 0·12 45·0
„ 45„ .. 6·4·01 401·0 0·22 87·0
White Nile Tewfikia .. 6·4·01 1081·0 0·28 381·0
„ „ ·24 17·4·03 1068·0 0·35 368·0
„ „ 2·65 26·8·03 2174·0 0·54 1046·0
„ „ 3·38 26·9·03 2332·0 0·56 1304·0
„ „ .. 25·9·02 1983·0 0·66 1272·0
Blue Nile Outlet of Lake Tsana .. 31·1·03 65·0 0·64 41·8

Appendix F.

Table XIII.—Observed discharges of the Victoria Nile referred to the Jinja gauge on Lake Victoria.

1903

Date of
Discharge.		 Locality
where taken.		 Gauge at Jinja Discharge
in metres³
per
second.
Day of
discharge.		 10 days
before
discharge.		 15 days
before
discharge.
22 January Ripon Falls ·51 .. .. 548
20 March Below the Murchison Falls .. ·66 ·70 577

Table XIV.—Observed discharges of the Albert Nile at Wadelai referred to the Wadelai gauge.

1903

Date of
Discharge.		 Gauge. Discharge
in metres³
per
second.		 Remarks.
22 March ·52 646

Table XV.—Observed discharges of the Albert Nile referred to the Mongalla gauge.

1903
Locality. Kilo-
metres
from
Gondo-
koro.		 Date. Mongalla gauge (32 kilom. north of Gondokoro) Discharge
m³
per
second.
5
days
before.		 4
days
before.		 3
days
before.		 2
days
before.		 1
day
before.		 day
of
dis-
charge.		 1
day
after.
Gondokoro 0 1 April .. .. .. .. .. 0·83 0·83 [9]693
.. 9 September 2·73 2·85 2·90 3·02 3·16 3·14 3·08 [10]1985
Mongalla 32 14 September 3·14 3·08 2·90 2·84 2·82 2·82 2·82 2046
Derwish Dem 156 16 September 2·90 2·84 2·82 2·82 2·82 2·84 2·92 888
North of Gaba-Shamba 415 18 September 2·82 2·82 2·82 2·84 2·92 3·06 3·12 532
Hillet Nur 538 1 September 2·52 2·52 ? ? ? 2·52 2·45 375
Hillet Nur 542 13 April 0·87 0·89 0·90 0·90 0·87 0·88 0·88 331
South of Lake No 741 14 April 0·89 0·90 0·90 0·87 0·88 0·88 0·89 285
South of Lake No 742 31 August 2·49 2·52 2·52 ? ? ? 2·52 318
1904
Gondokoro .. 14 May 1·89 1·89 1·96 2·03 2·10 2·03 2·07 1138
BÔr 165 12 May 1·89 1·89 1·89 1·89 1·96 2·03 2·10 813
South of Lake No 742 22 May 2·03 2·03 2·03 2·07 2·07 2·17 2·17 302

[9] 641 + 52 for side channel.[10] 1847 + 138 for side channel.

Table XVI.—Observed discharges of the Bahr El Gazelle referred to the Tewfikia gauge on the White Nile.

Date of
discharge.		 Gauge Discharges
m³
per
second.		 Remarks.
Day. 1
day
after.		 2
days
after.		 3
days
after.
21 September 3·31 3·33 3·35 3·36 20
30 August 2·74 2·75 2·76 2·77 12

Table XVII.—Observed discharges of the Bahr El Zeraf referred to the Tewfikia gauge on the White Nile.

1903
Date of
discharge.		 Gauge Discharge
m³
per
second.		 Remarks.
1
day
before.		 Day. 1
day
after.
16 April 0·24 0·24 0·24 50
22 September 3·31 3·33 3·35 158
8 May 0·25 0·26 0·26 61
29 August 2·68 2·70 2·72 110 App. gauge
1904
23 May 1·35 1·38 1·40 124

Table XVIII.—Observed discharges of the Albert Nile above the Sobat junction referred to the Tewfikia gauge.

1903
Date of
discharge.		 Gauge Discharge
m³
per
second.
1
day
before.		 day. 1
day
after.
16 April ·24 ·24 ·24 349
22 September 3·31 3·33 3·35 450

Table XIX.—Observed discharges of the Sobat River referred to the Dulaib Hilla gauge.

1903
17 April .. ·10 .. 45
26 August 2·70 2·71 2·74 769
26 September 3·16 3·17 3·19 895

Table XX.—Observed discharges of the White Nile just below the Sobat junction referred to the Tewfikia gauge.

1903
17 April ·24 ·24 ·24 381
26 August 2·64 2·65 2·66 1046
26 September 3·37 3·38 3·40 1304

Table XXI.—Observed discharges of the White Nile at Duem referred to the Duem and Khartoum gauges.

Date. Duem
Gauge
-
Gauge.		 Khartoum
Gauges		 Dis-
charge
cubic
metres
per
second.
3
days
before.		 2
days
before.		 day
before.		 day
of
dis-
charge.
1902
May 13 ·51 -·06 -·07 -·04 -·04 347
June 11 ·95 ·76 ·75 ·77 ·84 650
July 8 1·42 1·70 1·70 1·85 2·03 788
August 5 2·20 3·52 3·62 3·71 3·79 867
September 2 3·48 5·30 5·30 5·20 5·20 330
October 1 3·50 5·03 5·06 5·16 5·14 870
October 28 2·50 3·35 3·30 3·23 3·16 802
December 1 2·00 2·11 2·10 2·08 2·06 930
December 29 2·04 1·54 1·50 1·48 1·45 1518
1903
January 27 1·12 0·90 0·87 0·84 0·83 663
February 24 0·86 0·36 0·32 0·29 0·28 462
March 24 0·46 0·02 0·01 0·01 0·02 559
April 21 0·38 -0·14 -0·12 -0·12 -0·16 415
May 19 0·38 -0·26 -0·23 -0·21 -0·19 447
June 16 1·09 1·41 1·56 1·65 1·75 658
July 1 1·31 1·61 1·54 1·54 1·54 884
„14 1·71 2·55 2·58 2·75 2·80 835
August 4 2·46 3·50 3·80 4·05 4·40 768
„ 11 3·28 4·95 5·06 5·06 5·10 579
„ 18 3·70 5·55 5·70 5·80 5·70 534
„ 23 4·08 5·80 5·90 5·95 6·00 654
„ 28 4·18 6·03 6·08 6·00 6·05 710
September 2 4·33 6·15 6·28 6·24 6·30 571
„7 4·43 6·20 6·20 6·15 6·12 737
„12 4·46 6·24 6·14 6·15 6·05 653
„18 4·40 5·86 5·95 5·88 5·88 840
„24 4·28 5·95 6·00 6·10 6·10 763
October 7 3·93 5·57 5·40 5·32 5·10 1588
November 3 3·11 3·90 3·85 3·75 3·65 1563
„ 24 2·44 2·65 2·63 2·63 2·60 1665
December 8 2·06 2·30 2·28 2·20 2·15 1462
„ 22 1·80 1·90 1·90 1·88 1·88 1403
1904
January 6 1·66 1·78 1·78 1·78 1·75 1508
„ 20 1·54 1·48 1·48 1·48 1·55 1466

Table XXII.—Observed discharges of the Blue Nile at Khartoum referred to the Wad-Medani and Khartoum gauges.

1902
Date of
Discharge.		 WAD MEDANI GAUGES Discharge
m³ per
second.		 Khartoum
gauges.		 Remarks.
2
days
before.		 1
day
before.		 Date
of
dis-
charge.
9 May ·39 ·39 ·37 184 -0·05
23 „ ·71 ·61 ·65 194 0·16
6 June 2·07 2·03 1·97 604 0·76
20 „ 2·97 3·27 3·39 695 1·06
27 „ 3·04 3·89 4·29 837 1·30
4 July 3·80 3·70 3·80 1032 1·75
11 „ 4·56 4·38 4·48 1453 2·07
18 „ 4·80 5·10 5·20 1612 2·33
25 „ 5·70 5·66 5·76 1885 2·64
1 August 7·06 7·28 7·56 3420 3·34
8 „ 8·56 8·76 8·86 4880 4·20
15 „ 9·14 9·02 8·96 4720 4·50
22 „ 10·08 10·00 9·66 5540 4·93
29 „ 10·46 10·52 10·32 7180 5·34
5 September 10·42 10·32 10·30 6580 5·27
12 „ 10·40 10·28 10·60 5800 5·35
19 „ 10·32 10·00 10·30 5760 5·30
26 „ 10·00 10·10 9·90 4800 5·10
3 October 9·94 9·88 9·70 4880 5·03
10 „ 8·40 8·20 8·00 3250 3·45
17 „ 7·38 7·48 7·40 2460 3·73
24 „ 6·94 6·88 6·78 2030 3·40
31 „ 6·18 6·14 6·04 1244 3·00
7 November 5·66 5·60 5·50 1272 2·77
14 „ 5·10 5·06 5·00 1035 2·48
21 „ 4·74 4·74 4·70 802 2·23
28 „ 4·56 4·54 4·46 787 2·11
5 December 4·08 4·04 4·00 654 1·94
12 „ 3·73 3·74 3·66 486 1·80
23 „ 3·43 3·32 3·26 476 1·58
1903
2 January 2·90 2·88 2·84 348 1·39
9 „ 2·64 2·60 2·58 270 1·22
16 „ 2·48 2·46 2·44 248 1·09
23 „ 2·34 2·32 2·30 250 0·94
6 February 2·06 2·04 2·04 226 0·60
20 „ 1·86 1·84 1·84 152 0·39
6 March 1·60 1·60 1·58 202 0·18
20 „ 1·36 1·34 1·34 201 0·04
3 April 1·24 1·20 1·20 132 0·12
17 „ 1·08 1·04 1·04 154 0·16
1 May 0·98 0·98 0·96 121 0·16
8 „ 0·88 0·88 0·90 Nil 0·23
15 „ 0·88 0·92 0·98 „ 0·26
22 „ 1·40 1·66 1·70 „ 0·09
28 „ 2·74 1·51 3·43 374 0·53
6 June 4·05 3·61 3·65 970 1·40
19 „ 4·70 4·62 4·52 1500 1·90
26 „ 4·25 4·51 4·31 1089 1·58
3 July 4·71 5·27 5·61 1314 1·78
10 „ 6·45 6·55 6·67 1952 2·48
17 „ 6·74 6·57 6·91 2267 2·75
24 „ 7·97 7·81 7·87 3183 3·40
31 „ 7·77 7·67 7·70 2870 3·45
5 August 9·81 10·11 10·11 7584 4·60
10„ 10·15 9·99 9·89 7100 5·06
14„ 10·59 10·71 10·57 9340 5·65
21„ 10·49 10·73 10·71 9519 5·90
28„ 10·47 10·41 10·61 9544 ?
4 September 10·68 10·44 10·40 8474 6·20
11„ 10·74 10·52 10·46 8385 6·15
18„ 9·94 9·92 9·96 7070 5·88
25„ 10·52 10·46 10·32 8965 6·08
2 October 9·22 9·48 9·36 6581 5·53
9„ 9·14 9·04 8·64 5749 5·15
16„ 7·97 7·94 8·07 3812 4·45
23„ 8·90 8·64 8·54 4198 4·56
30„ 7·53 7·33 7·29 2893 4·00
6 November 6·86 6·68 6·32 2275 3·50
13„ 6·00 5·90 5·70 1790 3·10
20„ 5·71 5·65 5·55 1456 2·65
4 December 4·90 4·88 4·84 1102 2·35
18„ 4·36 4·30 4·28 789 1·90
25„ 3·90 3·88 3·84 722 1·88
1904
1 January 3·60 3·66 3·64 604 1·80
15„ 3·40 3·38 3·36 488 1·59

Table XXIII.—Observed discharges of the Atbara referred to the Khasm El Girba gauge.

1903
Date of
Discharge.		 Gauges Dis-
charge
m³ per
second.		 Remarks
5
days
before.		 4
days
before.		 3
days
before.		 2
days
before.		 1
day
before.		 Date
of
dis-
charge.
16 July 2·65 2·31 2·10 2·10 2·65 2·28 381
23 „ 2·37 2·55 2·74 2·83 2·70 2·70 538
27 „ 2·70 2·70 3·00 2·62 2·53 2·60 780
2 August 2·76 2·80 3·29 3·54 4·21 4·00 758
5„ 3·54 4·21 4·00 3·56 3·25 3·35 1448
14„ 3·29 3·72 4·61 4·37 4·53 4·60 2318
15„ 3·72 4·61 4·37 4·53 4·60 4·85 2931
27„ 5·12 4·82 4·54 4·35 4·20 4·80 2632
30„ 4·35 4·20 4·80 4·55 4·55 4·75 3088
5 September 4·45 4·52 4·52 4·60 4·70 4·55 2822
12„ 4·58 4·50 4·15 4·30 3·89 3·95 2091
18„ 3·80 3·84 3·71 3·88 4·36 4·20 1672
25„ 4·12 3·80 4·45 3·30 3·25 3·10 1267
28„ 3·30 3·25 3·10 2·89 3·42 3·10 902
2 October 3·42 3·10 3·13 3·05 2·88 2·78 925
4„ 3·13 3·05 2·88 2·78 2·78 2·90 754
5„ 3·05 2·88 2·78 2·78 2·90 2·75 703

Appendix G.
TABLES GIVING MEAN MONTHLY DISCHARGES OF THE NILE AND ITS TRIBUTARIES DURING 1902, 1903 AND 1904.

TABLE XXIV.—Mean discharges of the Nile tributaries in cubic metres per second at the various gauge stations in 1902, 1903, 1904.

300
 1300 1300 20
February 600 240 0 840 880 500 20
March 500 180 0 680 620 100 30
April 420 120 0 540 480 0 0
May 420 280 0 700 440 0 0
June 600 1200 200 2000 630 0 0
July [11]700 2500 600 3800 1400 0 150
August [11]400 8200 2300 10900 5700 1500 300
September [11]600 8200 1500 10300 8600 3300 2000
October 1700 4500 0 6200 6300 3500 2200
November 1600 1700 0 3200 3400 2500 1600
December 1450 800 0 2253 2000 1100 800
Year 830 2350 380 3560 2650 1150 590

1904
Month. Victoria
Nile at
Ripon
Falls.		 Albert Nile Gazelle
river
app.		 Sobat
river.		 White
Nile at
Tewfikia.		 White
Nile at
Khartoum.		 Blue
Nile at
Khartoum.		 Atbara
river.		 Total
of:
White,
Blue
and
Atbara
rivers.		 Nile at
AssuÂn
in flood.
At Halfa
in low
supply.		 Rosetta
branch.		 Damietta
branch.
Wadelai. Gondo-
koro.		 Above
Sobat
junction.
February .. 1030 1060 430 20 230 660 800 300 0 1100 1300 850 110
March .. 1000 1020 430 20 130 560 520 210 0 730 850 110 250
April .. 1000 1060 430 10 100 530 500 200 0 700 650 0 80
May .. .. 1200 430 0 160 590 500 300 0 800 600 0 10
June .. .. 1200 [11]400 0 290 690 550 500 50 1050 950 0 30
July .. .. .. .. .. .. .. .. 2600 800 .. 1100 30 80
August .. .. .. .. .. .. .. .. 5500 1100 .. 5900 2000 1000
September .. .. .. .. .. .. .. .. .. 700 .. .. .. ..
October .. .. .. .. .. .. .. .. .. .. .. .. .. ..
November .. .. .. .. .. .. .. .. .. .. .. .. .. ..
December .. .. .. .. .. .. .. .. .. .. .. .. .. ..
Year .. .. .. .. .. .. .. .. .. .. .. .. .. ..
1904
Month. Victoria
Nile at
Ripon
Falls.		 Albert Nile Gazelle
river
app.		 Sobat
river.		 White
Nile at
Tewfikia.
Wadelai. Gondo-
koro.		 Above
Sobat
junction.
February .. 1030 1060 430 20 230 660
March .. 1000 1020 430 20 130 560
April .. 1000 1060 430 10 100 530
May .. .. 1200 430 0 160 590
June .. .. 1200 [11]400 0 290 690
July .. .. .. .. .. .. ..
August .. .. .. .. .. .. ..
September .. .. .. .. .. .. ..
October .. .. .. .. .. .. ..
November .. .. .. .. .. .. ..
December .. .. .. .. .. .. ..
Year .. .. .. .. .. .. ..
1904
Month. White
Nile at
Khartoum.		 Blue
Nile at
Khartoum.		 Atbara
river.		 Total
of:
White,
Blue
and
Atbara
rivers.		 Nile at
AssuÂn
in flood.
At Halfa
in low
supply.		 Rosetta
branch.		 Damietta
branch.
February 800 300 0 1100 1300 850 110
March 520 210 0 730 850 110 250
April 500 200 0 700 650 0 80
May 500 300 0 800 600 0 10
June 550 500 50 1050 950 0 30
July .. 2600 800 .. 1100 30 80
August .. 5500 1100 .. 5900 2000 1000
September .. .. 700 .. .. .. ..
October .. .. .. .. .. .. ..
November .. .. .. .. .. .. ..
December .. .. .. .. .. .. ..
Year .. .. .. .. .. .. ..

[11] Blue Nile water flowing up the White Nile and decreasing the normal discharge.

Appendix H

Table XXV.—Minimum and Maximum Discharges of the Nile and its tributaries in 1902 and 1903.

1902
Name of
River.		 Locality. Minimum
Summer
Discharge
m³ per
second		 Maximum
Flood
Discharge
m³ per
second
Date. Discharge. Date. Discharge.
Victoria Nile Ripon Falls December 480 May 580
Albert Nile WadelaÏ April 5th 530 Dec. 10th 760
„ Gondokoro April 15th 540 Aug. 24th 1360
„ Above Sobat .. .. .. ..
Sobat Mouth .. .. .. ..
White Nile Tewfikieh April app: 340 .. ..
„ Duem May, 11th 340 Dec. 29th 1500
Blue Nile Khartoum April 15th 180 Aug. 29th 7200
Atbara Mouth .. .. Sept. 8th 2020
Nile Wadi Haifa June 2nd 490 .. ..
AssuÂn .. .. Sept. 17th 7000
1903
Victoria Nile Ripon Falls January 490 July 830
Albert Nile WadelaÏ April 5th 630 December 1070
„ Gondokoro April 10th 680 Sept. 23rd 2600
„ Above Sobat April 430 .. 430
Sobat Mouth April 15th 40 Sept. 15th 1040
White Nile Tewfikieh April 380 Dec. 15th 1470
„ Duem May 9th 400 Nov. 15th 1670
Blue Nile Khartoum May 5th 100 Aug. 28th 9600
Atbara Mouth .. .. Aug. 30th 3100
Nile Wadi Haifa May 21st 420 .. ..
AssuÂn .. .. Sept. 12th 9000

Appendix I.

Table XXVI.—Table of mean monthly Discharges at Khartoum, AssuÂn and Cairo, for the maximum, minimum and mean years.

Month 1877-78
Minimum Year		 1878-79
Maximum Year		 Mean of
20 Years
Blue
Nile at
Khar-
toum.		 AssuÂn. Cairo. Blue
Nile at
Khar-
toum.		 AssuÂn. Cairo. Blue
Nile at
Khar-
toum.		 AssuÂn. Cairo.
June 1000 800 600 1000 500 250 1000 750 500
July 2800 2400 1100 3500 2000 900 2800 2200 1100
August 5300 5600 3900 8200 7900 5200 7000 7900 5300
September 4700 5900 4400 12500 12100 8600 8500 9200 7200
October 2500 4000 3900 8000 9300 10300 4500 6000 6900
November .. 2400 2550 .. 4700 6500 .. 3300 3700
December .. 1500 1600 .. 3200 3600 .. 2200 2300
January .. 1200 1300 .. 2400 2600 .. 1600 1600
February .. 800 800 .. 2100 2100 .. 1200 1200
March .. 600 550 .. 1900 1900 .. 850 800
April .. 500 400 .. 1600 1600 .. 700 620
May .. 400 300 .. 1500 1500 .. 600 520
Mean .. 2175 1783 .. 4100 3754 .. 3041 2645

Note.—The very high discharges at AssuÂn and Cairo in April and May 1879; the minimum discharge of that year was about 1500 cubic metres per second. There has never been any discharge like that since.

Appendix J.
DISCHARGE TABLES OF THE DIFFERENT GAUGES OF THE NILE AND ITS TRIBUTAIRIES.

Table XXVII.—Discharges table of the Victoria Nile at the Ripon Falls.

Gauge. Discharge
m³ per
second.		 Remarks.
0·0 380 This discharge table is the mean of two alternative tables; one assuming that the width of the sill of the Ripon Falls was 127 metres as stated by Sir William Garstin, the other assuming that only half this width was the working sill, the rest being more or less shallow water. The constant has been taken as ·57. Sir William Garstin makes the width of the sill 70 + 40 + 13 = 127 metres, while Chavanne gives it as 82 + 14 + 55 + 22 = 173 metres.
The wider the sill, the quicker is the rise of discharge from the measured discharge at the gauge of ·51.
·1 410
·2 450
·3 480
·4 520
·5 550
·6 580
·7 620
·8 660
·9 700
1·0 740
·1 780
·2 820
·3 860
·4 900
·5 950
·6 990
·7 1040
·8 1090
·9 1140
2·0 1190

Table XXVIII.—Discharge table of the Albert Nile at WadelaÏ.

Gauge. Discharge
cubic
metres
per
second.		 Gauge. Discharge
cubic
metres
per
second.		 Gauge. Discharge
cubic
metres
per
second.
0·0 520 1·0 780 2·0 1090
·1 544 ·1 810 ·1 1104
·2 568 ·2 840 ·2 1118
·3 592 ·3 870 ·3 1132
·4 616 ·4 900 ·4 1146
·5 640 ·5 930 ·5 1160
·6 668 ·6 962 .. ..
·7 696 ·7 994 .. ..
·8 724 ·8 1026 .. ..
·9 752 ·9 1058 .. ..

Table XXIX.—Discharge Table of the Albert Nile at the Gondokoro gauge.

Gauge. Discharge
cubic
metres
per
second.		 Remarks.
0·0 550 There is a scour of a metre and upwards at this gauge site during a high flood. The pit is apparently filled with sand during a low flood.
·2 600
·4 660
·6 740
·8 820
1·0 900
·2 1060
·4 1220
·6 1380
·8 1540
2·0 1700
·2 1900
·4 2100
·6 2300
·8 2500
3·0 2700

Table XXX.—Discharge table of the Albert Nile at the Mongalla gauge, 32 kilometres north of Gondokoro.

Gauge. Discharge
cubic
metres
per
second.		 Gauge. Discharge
cubic
metres
per
second.		 Remarks.
0·0 500 2·0 1100 This is a better site than Gondokoro.
·2 540 ·2 1300
·4 580 ·4 1500
·6 620 ·6 1700
·8 660 ·8 1900
1·0 700 3·0 2100
·2 780 ·2 2300
·4 860 ·4 2500
·6 940 ·6 2700
·8 1020 .. ..

Table XXXI.—Discharge table of the Sobat river at Dulaib Hilla.

Gauge. Discharge
in m³
per
second.
0·0 30
·2 58
·4 86
·6 112
·8 142
1·0 170
·2 218
·4 266
·6 314
·8 362
2·0 410
·2 500
·4 590
·6 680
·8 790
3·0 860
·2 950
·4 1040
·6 1130
·8 1220
4·0 1310

This gauge is in backwater when the north
end of the Sudd region is flooded.

Table XXXII.—Discharge Table of the White Nile at Tewfikieh downstream of Sobat junction referred to Tewfikia Gauge.

Gauge. Discharge
in m³
per
second.
-1·0 150
0·0 330
·2 376
·4 422
·6 468
·8 514
1·0 560
·2 616
·4 672
·6 728
·8 784
2·0 840
·2 906
·4 972
·6 1038
·8 1104
3·0 1170
·2 1270
·4 1370
·6 1470
·8 1570
4·0 1670
·2 1770
·4 1870
·6 1970
·8 2070
5·0 2170

Table XXXIII.—Discharge Table of the White Nile at Duem in Winter and Summer when the Blue Nile is low.

Gauge. Discharge
in m³
per
second.		 Remarks.
0·0 330 This gauge is in backwater when the Blue Nile is high.
·1 354
·2 370
·3 402
·4 426
·5 450
·6 480
·7 515
·8 555
·9 600
1·0 650

This table is only very approximative.

Table XXXIV.—Discharge table of the Blue Nile at Wad Medani.

Gauge. Discharge
in m³
per second
River
rising.		 River
Falling
and
Stationary.
0·0 50 50
·2 80 64
·4 110 78
·6 140 92
·8 170 106
1·0 200 120
·2 240 146
·4 280 172
·6 320 198
·8 360 224
2·0 400 250
·2 450 284
·4 500 318
·6 550 352
·8 600 380
3·0 650 420
·2 720 406
·4 790 512
·6 860 558
·8 930 604
4·0 1000 650
·2 1100 720
·4 1200 790
·6 1300 860
·8 1400 930
5·0 1500 1000
·2 1630 1100
·4 1760 1200
·6 1890 1300
·8 2020 1400
6·0 2150 1500
·2 2320 1620
·4 2490 1740
·6 2600 1800
·8 2830 1980
7·0 3000 2100
·2 3200 2340
·4 3400 2580
·6 3600 2820
·8 3800 3060
8·0 4000 3300
·2 4300 3540
·4 4600 3780
·6 4900 4020
·8 5200 4200
9·0 5500 4500
·2 5900 4840
·4 6300 5180
·6 6700 5520
·8 7100 5860
10·0 7500 6200
·2 8000 6580
·4 8500 6960
·6 9000 7340
·8 9500 7720
11·0 10000 8100
·2 10600 8540
·4 11200 8980
·6 11800 9420
·8 12400 9800
12·0 13000 10300

(1) These discharges include the Rahad river. They represent the discharges below the Rahad river junction referred to the Wad Medani gauge.

(2) During a high flood the river scours, and it silts during a low flood; consequently for exact discharges below 5 metres, the section of the river should be taken annually in December.

Table XXXV.—Discharge Table of the Blue Nile at the Khartoum Gauge.

Gauge. River
rising		 River
falling
and
Stationary
Discharge
in m³
per
second.		 Discharge
in m³
per
second.
-·2 100 100
+0·0 175 120
·2 260 145
·4 360 170
·6 470 195
·8 580 220
1·0 700 250
·2 860 340
·4 1020 430
·6 1180 520
·8 1340 610
2·0 1500 700
·2 1720 880
·4 1940 1060
·6 2160 1240
·8 2380 1420
3·0 2600 1600
·2 2980 1840
·4 3360 2080
·6 3740 2320
·8 4120 2560
4·0 4500 2800
·2 4980 3180
·4 5460 3560
·6 5940 3940
·8 6420 4320
5·0 6900 4700
·2 7560 5220
·4 8220 5740
·6 8880 6260
·8 9540 6780
6·0 10200 7300
·2 11000 7940
·4 11800 8580
·6 12600 9220
·8 13400 9860
7·0 14200 10500
·2 ... 11140
·4 ... 11780
·6 ... 12420

This gauge is in backwater when the White Nile is discharging more than the Blue Nile.

Table XXXVI.—Discharge Table of the Atbara river referred to the Khasm el Girba Gauge.

Gauge. Discharge.
0·0 0·0
·2 20
·4 40
·6 60
·8 80
1·0 100
·2 150
·4 200
·6 250
·8 300
2·0 350
·2 444
·4 538
·6 632
·8 726
3·0 820
·2 1012
·4 1204
·6 1396
·8 1588
4·0 1780
·2 2078
·4 2376
·6 2674
·8 2972
5·0 3270
·2 3596
·4 3922
·6 4248
·8 4574
6·0 4900

Table XXXVII.—Discharge table for the AssuÂn, Assiut and Cairo Gauges.

The gauges are in metres and are referred to mean low-water level as zero.

The zero is:
at AssuÂn R.L. 85·00
at Assiut „ 45·55
at Cairo „ 12·25

N.B.—At Assiut R.L. 45·55, according to the reservoir levels, is R.L. 45·05 according to the 4th Circle levels.

(The discharges are in cubic metres per second.)

This discharge table may be used approximately for any gauge on the Nile north of AssuÂn with its zero at mean low-water level; adding ·5 to the gauge in Kena Province, and deducting ·5 from the gauge in Minieh and Beni-Suef.

If the river is rising, take the discharge corresponding to the higher gauge; if falling or stationary to the lower one.

Gauge. Discharge.
-1·0 360
-·8 406
-·6 452
-·4 498
-·2 544
0·0 590
·2 668
·4 746
·6 824
·8 902
1·0 980
·2 1086
·4 1192
·6 1298
·8 1404
2·0 1510
·2 1652
·4 1794
·6 1936
·8 2078
3·0 2220
·2 2408
·4 2596
·6 2784
·8 2972
4·0 3160
·2 3404
·4 3648
·6 3892
·8 4136
5·0 4380
·2 4674
·4 4968
·6 5262
·8 5556
6·0 5850
·2 6150
·4 6450
·6 6800
·8 7200
7·0 7600
·2 8000
·4 8400
·6 8800
·8 9300
8·0 9800
·2 10300
·4 10900
·6 11500
·8 12100
9·0 12800
·2 13600

Table XXXVIII.

Discharge Table of the Wady Halfa Gauge, for use at AssuÂn when the AssuÂn Dam is being regulated on, and consequently the AssuÂn Gauge no longer represents the normal discharge of the Nile. At this stage of the river it may be assumed that the water travels normally between Wady Halfa and AssuÂn in 3 or 4 days.

Gauge. Discharge
cubic
metres
per
second.
0·8 370
1·0 440
·2 516
·4 592
·6 688
·8 804
2·0 920
·2 1048
·4 1176
·6 1314
·8 1462
3·0 1610
·2 1800
·4 1990
·6 2180
·8 2370
4·0 2560
·2 2802
·4 3044
·6 3286
·8 3528
5·0 3770

Table XXXIX.—Discharge of the Rosetta Branch of the Nile referred to the Delta Barrage north of Cairo.

1890
Gauge. Discharge
m³ per
second.
0·00 0
·25 50
·50 100
·75 150
1·00 200
·25 287
·50 375
·75 463
2·00 550
·25 700
·50 850
·75 1000
3·00 1150
·25 1312
·50 1475
·75 1638
4·00 1800
·25 1975
·50 2150
·75 2325
5·00 2500
·25 2700
·50 2900
·75 3100
6·00 3300
·25 3525
·50 3750
·75 3975
7·00 4200
·25 4450
·50 4700
·75 4950
8·00 5200
·25 5475
·50 5750
·75 6025
9·00 6300

Zero of the gauge R.L. 10·00 metres above mean sea.

Table XL.—Discharge of the Damietta Branch of the Nile referred to the Delta Barrage north of Cairo.

1890
Gauge. Discharge
m³ per
second.
0·00 0
·25 20
·50 40
·75 60
1·00 80
·25 110
·50 140
·75 170
2·00 200
·25 262
·50 325
·75 388
3·00 450
·25 537
·50 625
·75 712
4·00 800
·25 925
·50 1050
·75 1175
5·00 1300
·25 1450
·50 1600
·75 1750
6·00 1900
·25 2075
·50 2250
·75 2425
7·00 2600
·25 2800
·50 3000
·75 3200
8·00 3400
·25 3625
·50 3850
·75 4075
9·00 4300

Note.—Zero of the gauge R.L. 10·00 metres above mean sea.

Appendix K.
TABLES GIVING DETAILED INFORMATION ABOUT THE NILE BETWEEN ASSUÂN AND CAIRO.

Table XLI.—Date of Heights of Minimum gauges in summer and Maximum gauges in flood at Assuan.

Year. Minimum
summer		 Maximum
flood
Date. Gauge. Date. Gauge.
1873 5 June -0·37 1 September 7·66
1874 30 May -0·64 6 September 8·97
1875 23 May -0·17 11 September 8·36
1876 15 June +0·13 7 September 8·68
1877 27 May +0·10 20 August 6·40
1878 23 June -0·71 1 October 9·15
1879 23 May +1·88 13 September 8·59
1880 9 June +0·82 4 September 7·82
1881 14 May +0·00 4 September 8·14
1882 23 June -0·55 28 August 8·00
1883 22 June +0·04 17 September 8·18
1884 27 May +0·37 1 September 7·73
1885 21 June -0·44 28 August 8·05
1886 3 June -0·06 22 September 8·04
1887 8 May -0·03 1 September 8·81
1888 8 June -0·08 24 August 7·08
1889 24 June -0·60 2 September 8·36
1890 8 June -0·60 2 September 8·72
1891 19 May -0·21 27 September 7·84
1892 18 June -0·64 20 September 8·88
1893 18 June +0·35 14 September 7·75
1894 16 June +0·06 18 September 8·61
1895 23 June +0·78 10 September 8·68
1896 13 June +0·49 3 September 8·63
1897 31 May +0·62 1 September 7·80
1898 23 June -0·25 29 August 8·63
1899 1 June +0·15 4 September 6·67
1900 15 May -0·93 19 August 7·91
1901 10 May -0·46 6 September 7·82
1902 12 May -0·48 17 September 6·72
1903 16 April -0·68 27 August 7·93
1904 5 June -0·20 13 August 6·97

Zero is R.L. 85·00 metres or mean low water level.

Table XLII.—Table giving areas of cross sections of the Nile, from AssuÂn to Cairo.

Locality. Length
in
kilo-
metres.		 MEAN AREA IN SQUARE METRES
Below
zero.		 Below
6
metres.		 Below
7
metres.		 Below
8
metres.		 Below
8.5
metres.		 Below
9
metres.
AssuÂn to RamÂdi 81 1024 4930 5808 6754 7337 7993
RamÂdi to Esna 76 674 4554 5461 6398 6966 7695
Esna to Kena 115 852 4476 5336 6221 6726 7363
Kena to SohÂg 158 973 4718 5600 6535 7121 7873
SohÂg to Assiout 98 1037 5220 6305 7705 8683 9749
Assiout to Minia 138 899 5149 6205 7783 8845 9937
Minia to Beni-SuÊf 117 915 5035 6007 7315 8196 9140
Beni-SuÊf to Koshesha 34 665 5040 6080 7532 8379 9247
Koshesha to Cairo 81 1031 5364 6388 7813 8648 9495
Cairo to the Barrage 24 1402 5414 6628 8346 9258 10184
AssuÂn to Assiout 528 920 4760 5680 6690 7310 8080
Assiout to Koshesha 289 870 5080 6100 7550 8510 9520
Koshesha to Cairo 81 1030 5360 6380 7810 8640 9490
AssuÂn to Cairo 898 910 4930 5890 7080 7830 8690

Table XLIII.—Table of the cubic contents of the trough of the Nile from AssuÂn to Cairo in millions of cubic metres.

Locality. Length
in
kilo-
metres.		 CONTENTS IN
MILLIONS
OF CUBIC METRES		 CONTENTS IN
MILLIONS
OF CUBIC METRES
Below
zero.		 From
zero
to
6.0		 From
6.0
to 7.0		 7.0
to
8.0		 8.0
to
8.5		 8.5
to
9.0		 Below
zero.		 Below
6.0		 Below
7.0		 Below
8.0		 Below
8.5		 Below
9.0
AssuÂn to Ramadi 81 83 316 711 77 47 53 83 399 470 547 594 647
Ramadi to Esna 76 51 295 69 71 43 56 51 346 415 486 529 585
Esna to Kena 115 98 417 99 102 58 73 98 514 614 715 773 847
Kena to Sohag 128 154 592 139 148 83 119 154 745 885 1032 1125 1244
Sohag to Assiout 98 102 410 106 137 96 104 102 512 618 755 851 955
Assiout to Minieh 138 124 586 146 218 147 151 124 710 856 1074 1220 1371
Minieh to Beni SuÊf 117 107 482 114 153 103 110 107 589 703 856 859 1069
Beni SuÊf to Kushesha 34 23 149 35 49 29 29 23 171 207 256 285 314
Kushesha to Cairo 81 84 351 83 115 68 69 84 434 517 633 700 769
Cairo to the Barrage 28 34 96 29 41 22 22 34 130 159 200 222 244
AssuÂn to Assiout 528 487 2030 484 534 327 405 487 2517 3001 3535 3862 4267
Assiout to Kushesha 289 254 1217 295 420 278 291 254 1471 1766 2186 2464 2755
Kushesha to Cairo 81 84 351 83 115 68 69 84 435 518 633 701 770
AssuÂn to Cairo 898 825 3598 862 1069 673 765 825 4423 5285 6354 7027 7792

Table XLIV.—Widths of water surface from AssuÂn to Cairo.

From. To. Mean width of water surface
0 6·0 7·0 8·0 8·5 9·0
AssuÂn Ramadi 400 840 880 1030 1270 1400
Ramadi Esna 340 850 890 1030 1260 1620
Esna Kena 350 820 850 940 1120 1400
Kena Sohag 380 870 890 1000 1300 1560
Sohag Assiout 400 1000 1170 1720 2080 2170
Assiout Minieh 390 970 1180 1890 2060 2080
Minieh Beni SuÊf 490 960 1300 1550 1800 1840
Beni SuÊf Kushesha 500 1000 1390 1690 1720 1730
Kushesha Cairo 450 960 1100 1570 1700 1700
Cairo Barrage 440 940 1460 1840 1860 1890
AssuÂn Assiout 370 880 940 1140 1410 1630
Assiout Kushesha 460 980 1290 1710 1860 1880
Kushesha Cairo 450 960 1100 1570 1700 1700
AssuÂn Cairo 430 940 1110 1470 1660 1740
Area of water surface in millions of square metres.
AssuÂn Assiout 200 470 500 600 740 860
Assiout Cairo 130 280 370 490 540 540
AssuÂn Cairo 400 840 1000 1320 1490 1560

Table XLV.—Slope of water surface in the Nile. AssuÂn to Cairo.

From. To. Distance
in kilo-
metres
down the
centre line
of the
flood.		 Distance
in kilo-
metres
down the
summer
channel.		 Slope
in
flood.		 Slope
in
summer.
AssuÂn Silsila 70 72 1/11500 1/12600
Silsila Kasr-es-Saad 250 258 1/14800 1/14800
Kasr-es-Saad Khazindaria 150 159 1/12300 1/13400
Khazindaria Assiout 60 63 1/11800 1/14500
Assiout Beni MazÂr 180 196 1/11000 1/11800
Beni MazÂr Ashmant 90 94 1/11000 1/11400
Ashmant Cairo 100 106 1/11600 1/12300
Cairo Barrage 23 25 1/10800 1/20000
AssuÂn Cairo 900 948 1/12200 1/13000

Table XLVI.—Mean low water level of the Nile—AssuÂn to Cairo.

Distance
from
AssuÂn
along
centre
of flood.		 Name of
Locality.		 R. L.
According
to
reservoir
levels.		 R. L.
According
to
inspectors
of
irrigation.		 Distance
from
AssuÂn
along
summer
Channel.
0 AssuÂn 85·0 85·0 0
70 Gebel Silsila 79·3 79·4 72
106 Edfu 76·7 77·0 ..
157 Esna 73·1 72·6 ..
194 Armant 70·1 69·6 ..
213 Luxor 69·0 68·5 ..
272 Kena 65·3 64·8 ..
320 Kasr-es-Saad 61·7 61·2 330
328 Heu 61·2 60·7 ..
333 Naga Hamadi 61·0 60·5 ..
365 Abu Shusha 58·6 58·1 ..
373 Balyana 58·3 57·8 ..
390 Girga 56·9 56·5 ..
429 SohÂg 53·8 53·2 ..
470 Khazindaria 49·9 49·4 489
505 Aboutig Escape 47·7 47·1 ..
530 Assiout[12] 45·55 45·05 552
598 Derut Escape 39·1 38·5 ..
627 Roda 36·3 35·7 ..
666 Minia 32·6 32·0 ..
710 Beni MazÂr 28·9 .. 748
.. Beni SuÊf[13] 22·1 21·8 ..
800 Ashmant 20·5 20·2 842
.. Kushesha Escape 18·9 18·6 ..
.. El-AyÂt 15·8 15·5 ..
898 Cairo gauge 12·10 12·25 ..
900 Cairo 12·00 12·1 948

[12] Downstream of the Assiout weir.[13] The Beni SuÊf gauge is unreliable in summer as it is on a branch of the river which is dammed by the villagers.

Table XLVII.—Discharge table of the Upper Egypt canals.

A low Nile flood is 6·4 metres - at AssuÂn.
A mean Nile flood is 7·5 „
A high Nile flood is 8·3 „

The discharges of the Upper Egypt canals corresponding to the AssuÂn gauges are approximately as follows: —

AssuÂn 6·0 1300
·1 1370
·2 1440
·3 1510
·4 1580 —Low Nile flood.
·5 1650
·6 1620
·7 1790
·8 1860
·9 1930
7·0 2000
·1 2070
·2 2140
·3 2210
·4 2280
·5 2350 —Mean Nile flood.
·6 2420
·7 2490
·8 2560
·9 2630
8·0 2700
·1 2770
·2 2840
·3 2910 —High Nile flood.
·4 2980
·5 3050
·6 3120
·7 3190
·8 3260
·9 3330
9·0 3400
R. L. of zero in R. L. 85·00 metres.

Table XLVIII.—Canal discharges between Assuan and Assiut.

DISCHARGES OF THE CANALS IN UPPER EGYPT IN 1892.

Name of Canal. AUGUST SEPTEMBER
15 20 25 31 5 10 15 20 25 30
Ramadi 55 66 80 76 82 85 89 91 .. ..
Um-Ads 8 9 12 13 16 18 20 .. .. ..
AfsÛn 25 29 37 39 42 43 45 .. .. ..
Fadilia 12 26 44 49 52 55 50 .. .. ..
Toukh 10 19 37 42 44 58 60 .. .. ..
Rannan 28 36 53 59 62 67 70 .. .. ..
Dumrania 26 35 56 62 65 70 74 .. .. ..
Rashwania 35 41 58 61 64 70 73 .. .. ..
Kasra 49 62 104 133 138 150 150 .. .. ..
Zarzria 24 30 64 76 77 90 90 .. .. ..
Girgawia 54 59 84 95 96 120 120 .. .. ..
Sohagia 380 386 470 485 492 520 500 .. .. ..
Tahta 44 45 66 75 77 82 85 .. .. ..
Shatura 25 24 39 47 49 45 40 .. .. ..
Ibrahimia 460 440 540 600 640 700 740 .. .. ..
Waladia 6 6 14 20 24 24 24 .. .. ..
Minor Canals 10 15 20 30 30 30 20 .. .. ..
Total left bank 1250 1320 1790 1980 2060 2250 2270 .. .. ..
Kilibia 6 11 17 20 24 28 32 .. .. ..
Maala 5 5 18 22 26 30 32 .. .. ..
Bayadi 30 36 62 69 77 85 90 .. .. ..
Shanhuria 46 55 98 108 116 120 125 .. .. ..
Shekhia 5 6 10 11 12 12 12 .. .. ..
Gilasi 19 30 58 64 68 70 72 .. .. ..
Samatha 12 19 41 48 52 60 60 .. .. ..
Tarif 10 15 20 25 25 25 25 .. .. ..
Hawis 15 22 38 41 44 51 56 .. .. ..
Ahaiwia 10 15 20 25 25 25 25 .. .. ..
Isaiwia 35 35 55 60 63 70 70 .. .. ..
Khizindaria 63 62 86 96 98 110 95 .. .. ..
Maanah 35 41 58 67 71 80 85 .. .. ..
Sant 6 7 8 10 10 12 12 .. .. ..
Minor Canals 4 8 12 15 15 15 15 .. .. ..
Total right bank 300 370 600 680 730 800 810 .. .. ..
Total both banks 1550 1690 2390 2660 2790 3050 3080 .. .. ..

Table XLVIII (continued).—Canal discharges between Assiout and Cairo.

DISCHARGES OF THE CANALS IN UPPER EGYPT IN 1892.

Name of Canal. AUGUST SEPTEMBER
15 20 25 31 5 10 15 20 25 30
Beni-Husain 13 16 20 30 35 40 .. .. .. ..
Abu-Bakra 53 38 60 80 85 93 .. .. .. ..
Sultani 18 10 20 37 38 40 .. .. .. ..
Nina 9 5 10 20 20 20 .. .. .. ..
Bahabshin 12 8 14 27 28 33 .. .. .. ..
Magnuna 15 15 22 40 45 45 .. .. .. ..
Kusheha 70 70 70 70 70 70 .. .. .. ..
Zawia 11 7 16 27 28 33 .. .. .. ..
Girza 40 38 70 95 100 100 .. .. .. ..
Zumr 13 12 14 19 20 19 .. .. .. ..
Minor Canals 2 2 4 4 4 4 .. .. .. ..
Total left bank 260 220 320 450 480 500 .. .. .. ..
Aly Bey 14 13 28 33 20 18 .. .. .. ..
KhassÂb 19 14 25 35 40 46 .. .. .. ..
Minor Canals 7 6 12 12 14 14 .. .. .. ..
Total right bank 40 30 70 80 80 80 .. .. .. ..
Total both banks 300 250 390 530 560 580 .. .. .. ..
Canal discharges between AssuÂn and Cairo.
Left bank 1510 1540 2110 2430 2540 2750 .. .. .. ..
Right bank 340 400 670 760 810 880 .. .. .. ..
Total 1850 1940 2780 3190 3390 3630 .. .. .. ..
AssuÂn gauge 6.7 7.4 8.3 8.3 8.6 8.8 8.7 .. .. ..
Assiout gauge 6.1 5.9 6.8 7.2 7.4 7.7 8.1 .. .. ..
Cairo gauge 5.8 5.5 5.8 6.7 7.0 7.2 7.7 .. .. ..

Table XLIX.—Canal discharges between Assuan and Assiut.

DISCHARGES OF THE CANALS IN UPPER EGYPT IN 1893.

Name of Canal. AUGUST SEPTEMBER OCTOBER
15 20 25 31 5 10 15 20 25 30 5 10 15 25
Ramadi 50 56 58 56 55 60 64 61 64 61 .. .. .. ..
Um-Ads 10 12 12 12 13 14 15 15 15 15 .. .. .. ..
Asfun 28 33 34 33 31 33 35 33 34 33 .. .. .. ..
Fadilia 17 24 26 26 22 24 29 24 22 20 .. .. .. ..
Toukh 19 24 26 27 21 24 24 22 27 26 .. .. .. ..
Rannan 20 26 29 28 25 25 30 27 30 28 .. .. .. ..
Dumrania 33 39 44 43 39 41 46 43 46 44 .. .. .. ..
Rashwania 45 52 60 55 50 53 68 60 65 60 .. .. .. ..
Kasra 70 72 82 79 72 76 87 82 87 82 .. .. .. ..
Zarzuria 38 44 47 46 45 47 52 46 52 46 .. .. .. ..
Gergawia 55 55 59 58 56 56 62 57 62 57 .. .. .. ..
Sohagia 390 380 400 390 350 360 420 390 430 410 .. .. .. ..
Tahta 45 46 47 46 44 45 51 44 52 47 .. .. .. ..
Shatura 20 23 26 25 22 17 28 25 29 28 .. .. .. ..
Ibrahimia 520 520 560 560 540 540 600 580 600 600 .. .. .. ..
Waladia 10 11 12 12 11 11 11 12 12 12 .. .. .. ..
Minor Canals 10 15 20 20 20 20 20 20 20 20 .. .. .. ..
Total left bank 1380 1430 1550 1510 1420 1440 1640 1540 1650 1590 .. .. .. ..
Kilibia 11 13 15 14 14 15 17 16 16 16 .. .. .. ..
Maala 11 12 13 12 13 14 16 16 16 16 .. .. .. ..
Bayadia 36 44 48 46 40 45 52 44 42 30 .. .. .. ..
Shanhuria 56 64 69 63 62 64 70 50 40 30 .. .. .. ..
Shekhia 6 7 9 8 6 6 4 5 6 6 .. .. .. ..
Gilasi 24 32 34 32 29 30 35 31 34 33 .. .. .. ..
Samatha 17 24 27 25 22 24 28 25 27 26 .. .. .. ..
Tarif 12 14 16 15 14 15 17 16 17 16 .. .. .. ..
Hawis 24 27 29 29 27 27 29 27 25 16 .. .. .. ..
Ahaiwia 15 16 16 16 12 12 10 7 4 4 .. .. .. ..
Isawia 30 37 40 37 37 39 40 40 43 40 .. .. .. ..
Khazindaria 60 62 67 66 60 60 66 65 55 50 .. .. .. ..
Maanah 20 30 32 32 29 32 33 34 24 24 .. .. .. ..
Sant 6 6 9 8 7 7 7 7 7 7 .. .. .. ..
Minor Canals 4 7 10 10 10 10 10 10 10 10 .. .. .. ..
Total right bank 340 400 430 410 390 400 430 390 370 320 .. .. .. ..
Total both banks 1720 1830 1980 1920 1810 1840 2070 1930 2020 1910 .. .. .. ..

Table XLIX (continued).—Canal discharges between Assiout and Cairo.

DISCHARGES OF THE CANALS IN UPPER EGYPT IN 1893.

Name of Canal. AUGUST SEPTEMBER OCTOBER
15 20 25 31 5 10 15 20 25 30 5 10 15 20 25
Beni Husain 17 18 19 20 14 12 16 17 17 17 .. .. .. .. ..
Abu-Bakra 63 50 63 64 60 58 68 65 64 64 .. .. .. .. ..
Sultani 17 16 17 17 16 15 17 17 17 17 .. .. .. .. ..
Nina 9 8 9 10 10 9 9 9 9 9 .. .. .. .. ..
Bahabshin 11 9 11 12 12 10 12 11 13 14 .. .. .. .. ..
Magnuna 21 20 20 20 24 23 28 29 30 30 .. .. .. .. ..
KushÂska 70 70 50 30 0 0 0 0 0 0 .. .. .. .. ..
Zawia 11 8 13 12 13 12 13 15 16 17 .. .. .. .. ..
Girza 50 45 50 55 60 60 50 50 40 30 .. .. .. .. ..
Zumr 10 10 10 10 6 6 7 12 14 15 .. .. .. .. ..
Minor Canals 2 2 2 2 2 2 2 2 2 2 .. .. .. .. ..
Total left bank 280 260 260 250 220 210 220 220 220 220 .. .. .. .. ..
Ali bey 16 20 27 28 15 12 15 17 20 20 .. .. .. .. ..
Khassab 20 20 20 22 19 15 19 15 15 18 .. .. .. .. ..
Minor Canals 6 6 6 6 7 7 7 7 7 7 .. .. .. .. ..
Total right bank 40 50 50 60 40 30 40 40 40 50 .. .. .. .. ..
Total both banks 320 310 310 310 260 240 260 260 260 270 .. .. .. .. ..
Canal discharges between Assuan and Cairo.
Left bank 1660 1690 1810 1760 1640 1650 1960 1760 1870 1810 .. .. .. .. ..
Right bank 380 450 480 470 430 430 470 430 410 370 .. .. .. .. ..
Total 2040 2140 2290 2230 2070 2080 2330 2190 2280 2180 .. .. .. .. ..
AssuÂn gauge 7.0 7.3 7.4 7.3 7.2 7.5 7.6 7.4 7.1 7.3 7.1 7.3 6.9 6.3 6.0
Assiout gauge 6.2 6.2 6.4 6.3 6.2 6.3 6.5 6.5 6.6 6.6 6.4 6.5 6.7 6.7 ..
Cairo gauge 5.8 5.6 5.9 6.0 6.0 5.8 6.0 6.0 6.1 6.3 6.2 6.1 6.4 6.5 2.7

Table L.—Calculated Cairo gauges corresponding to AssuÂn gauges if basin irrigation were to be changed into perennial irrigation.

1874.
Date at
AssuÂn.		 Gauges
at
AssuÂn.		 Discharges
at
AssuÂn.		 Water
con-
sumption
AssuÂn
to
Cairo.		 Trough
of Nile
AssuÂn
to
Cairo.		 Discharge
at Cairo.		 Gauges
at
Cairo.		 Date at
Cairo.
August 5 6·9 7600 -1020 -1000 5580 5·8 10th August.
„ 10 7·4 8600 do do 6580 6·4 15th „
„ 15 8·5 11500 do do 9480 7·8 20th „
„ 20 8·6 11800 do do 9780 7·9 25th „
„ 25 8·7 12100 do do 10080 8·1 31st „
„ 31 8·7 12100 do do 10080 8·2 5th September.
September 5 9·0 12800 do do 10780 8·3 10th „
„ 10 8·8 11800 do 0 10780 8·4 15th „
„ 15 8·7 11500 do +500 10980 8·5 20th „
„ 20 8·4 10600 do do 10080 8·2 25th „
„ 25 8·4 10600 do do 10080 8·2 30th „
„ 30 8·2 10050 do do 9430 7·9 5th October.
October 5 7·9 9300 do do 8780 7·6 10th „
„ 10 7·6 8600 do +700 8280 7·4 15th „
„ 15 7·2 7800 do do 7480 7·0 20th „
„ 20 6·6 6600 do do 6280 6·3 25th „
„ 25 6·2 6000 do do 5680 5·9 31st „
„ 31 5·6 5100 do do 4780 5·3 5th November.
November 5 5·2 4500 do do 4780 4·3 10th „

Table LI.—Calculated Cairo gauges corresponding to AssuÂn gauges if basin irrigation were to be changed into perennial irrigation.

1877
Date at
AssuÂn.		 Gauges
at
AssuÂn.		 Discharges
at
AssuÂn.		 Water
con-
sumption
AssuÂn
to
Cairo.		 Trough
of Nile
AssuÂn
to
Cairo.		 Discharge
at Cairo.		 Gauges
at
Cairo.		 Date at
Cairo.
August 5 4·8 4200 -800 -300 3100 3·9 10th August.
„ 10 5·4 5100 -1020 do 3780 4·6 15th „
„ 15 5·8 5700 do do 4380 5·0 20th „
„ 20 6·4 6500 do do 5180 5·5 25th „
„ 25 6·1 5800 do do 4480 5·1 31st „
„ 31 6·2 6000 do do 4680 5·2 5th September.
September 5 6·3 6200 do do 4880 5·3 10th „
„ 10 6·1 5800 do +200 4980 5·5 15th „
„ 15 6·1 5700 do do 4880 5·4 20th „
„ 20 6·0 5700 do do 4880 5·4 25th „
„ 25 6·3 6200 do do 5380 5·6 30th „
„ 30 6·1 5800 do do 4980 5·4 5th October.
October 5 5·6 5100 do do 4280 5·0 10th „
„ 10 5·2 4500 do do 3680 4·6 15th „
„ 15 4·9 4200 -950 do 3450 4·4 20th „
„ 20 4·6 3800 -900 do 3100 4·0 25th „
„ 25 4·5 3600 -850 do 2950 3·9 31st „
„ 31 4·0 3100 -800 do 2500 3·5 5th November.
November 5 3·7 2800 -700 do 2300 3·3 10th „

Table LII.—Calculated Cairo gauges corresponding to AssuÂn gauges if basin irrigation were to be changed into perennial irrigation.

1878
Date at
AssuÂn.		 Gauges
at
AssuÂn.		 Discharges
at
AssuÂn.		 Water
con-
sumption
AssuÂn
to
Cairo.		 Trough
of Nile
AssuÂn
to
Cairo.		 Discharge
at Cairo.		 Gauges
at
Cairo.		 Date at
Cairo.
August 5 5·6 5400 -1020 -800 3580 4·4 10th August.
„ 10 5·3 6500 do do 4680 5·2 15th „
„ 15 7·2 8200 do do 6380 6·3 20th „
„ 20 7·5 8600 do do 6780 6·5 25th „
„ 25 8·1 10000 do do 8180 7·3 31st „
„ 31 7·6 8800 do +800 8580 7·5 5th September.
September 5 8·1 10300 do -600 8580 7·5 10th „
„ 10 8·5 11500 do do 9880 8·0 15th „
„ 15 8·9 12800 do do 11180 8·5 20th „
„ 20 8·9 12500 do do 10880 8·4 25th „
„ 25 9·0 12800 do do 11180 8·5 30th „
„ 30 9·1 13200 do do 11580 8·6 5th October.
October 5 8·9 12100 do +400 11480 8·6 10th „
„ 10 8·5 10900 do +800 10680 8·4 15th „
„ 15 7·9 9300 do do 9080 8·0 20th „
„ 20 7·6 8600 do do 3380 7·4 25th „
„ 25 7·4 8200 do do 7980 7·2 31st „
„ 31 6·8 7000 do do 6780 6·6 5th November.
November 5 6·3 6200 do do 5980 6·1 10th „

Appendix L
Gauges of the Nile and its tributaries

Table LIII.—Lake Victoria gauges at Jinja near the Ripon Falls.

Months. 1898 1899 1900 1901 1902 1903 1904
Maxi-
mum.		 Mini-
mum.		 Mean. Maxi-
mum.		 Mini-
mum.		 Mean. Maxi-
mum.		 Mini-
mum.		 Mean. Maxi-
mum.		 Mini-
mum.		 Mean. Maxi-
mum.		 Mini-
mum.		 Mean. Maxi-
mum.		 Mini-
mum.		 Mean. Maxi-
mum.		 Mini-
mum.		 Mean.
January .. .. .. 0·95 0·89 0·90 0·44 0·34 0·39 0·41 0·28 0·35 0·40 0·34 0·38 0·57 0·33 0·42 .. .. ..
February .. .. .. 0·91 0·84 0·87 0·43 0·33 0·39 0·38 0·30 0·36 0·43 0·36 0·39 0·71 0·62 0·68 .. .. ..
March .. .. .. 0·89 0·83 0·85 0·43 0·33 0·38 0·58 0·42 0·48 0·41 0·34 0·37 0·77 0·66 0·71 .. .. ..
April .. .. .. 0·94 0·83 0·84 0·48 0·38 0·42 0·89 0·46 0·66 0·44 0·39 0·43 0·93 0·72 0·78 .. .. ..
May .. .. 1·05 1·05 0·85 0·94 0·48 0·42 0·45 0·95 0·81 0·89 0·60 0·44 0·54 1·10 0·84 1·00 .. .. ..
June .. .. 0·96 1·02 0·86 0·93 0·47 0·41 0·45 0·93 0·74 0·83 0·55 0·45 0·50 1·22 1·07 1·15 .. .. ..
July .. .. 0·99 0·91 0·79 0·86 0·46 0·44 0·45 0·76 0·61 0·68 0·46 0·41 0·44 1·37 1·17 1·24 .. .. ..
August .. .. 0·96 0·85 0·56 0·64 0·46 0·43 0·45 0·64 0·46 0·57 0·45 0·38 0·42 1·22 1·00 1·14 .. .. ..
September 0·99 0·93 0·95 0·56 0·43 0·48 0·43 0·30 0·38 0·51 0·27 0·39 0·41 0·37 0·39 1·03 0·95 0·98 .. .. ..
October 0·98 0·91 0·95 0·43 0·33 0·38 0·30 0·17 0·24 0·51 0·33 0·45 0·40 0·32 0·35 1·17 0·99 1·07 .. .. ..
November 0·99 0·91 0·95 0·36 0·33 0·35 0·19 0·11 0·16 0·36 0·29 0·33 0·41 0·33 0·37 1·27 1·05 1·16 .. .. ..
December 0·99 0·98 0·95 0·38 0·33 0·35 0·38 0·15 0·26 0·43 0·34 0·40 0·43 0·28 0·36 1·24 1·12 1·16 .. .. ..
Mean. .. .. .. .. .. 0·70 .. .. 0·37 .. .. 0·53 .. .. 0·41 .. .. 0·96 .. .. ..
Months. 1898 1899 1900 1901
Maxi-
mum.		 Mini-
mum.		 Mean. Maxi-
mum.		 Mini-
mum.		 Mean. Maxi-
mum.		 Mini-
mum.		 Mean. Maxi-
mum.		 Mini-
mum.		 Mean.
January .. .. .. 0·95 0·89 0·90 0·44 0·34 0·39 0·41 0·28 0·35
February .. .. .. 0·91 0·84 0·87 0·43 0·33 0·39 0·38 0·30 0·36
March .. .. .. 0·89 0·83 0·85 0·43 0·33 0·38 0·58 0·42 0·48
April .. .. .. 0·94 0·83 0·84 0·48 0·38 0·42 0·89 0·46 0·66
May .. .. 1·05 1·05 0·85 0·94 0·48 0·42 0·45 0·95 0·81 0·89
June .. .. 0·96 1·02 0·86 0·93 0·47 0·41 0·45 0·93 0·74 0·83
July .. .. 0·99 0·91 0·79 0·86 0·46 0·44 0·45 0·76 0·61 0·68
August .. .. 0·96 0·85 0·56 0·64 0·46 0·43 0·45 0·64 0·46 0·57
September 0·99 0·93 0·95 0·56 0·43 0·48 0·43 0·30 0·38 0·51 0·27 0·39
October 0·98 0·91 0·95 0·43 0·33 0·38 0·30 0·17 0·24 0·51 0·33 0·45
November 0·99 0·91 0·95 0·36 0·33 0·35 0·19 0·11 0·16 0·36 0·29 0·33
December 0·99 0·98 0·95 0·38 0·33 0·35 0·38 0·15 0·26 0·43 0·34 0·40
Mean. .. .. .. .. .. 0·70 .. .. 0·37 .. .. 0·53
Months. 1902 1903 1904
Maxi-
mum.		 Mini-
mum.		 Mean. Maxi-
mum.		 Mini-
mum.		 Mean. Maxi-
mum.		 Mini-
mum.		 Mean.
January 0·40 0·34 0·38 0·57 0·33 0·42 .. .. ..
February 0·43 0·36 0·39 0·71 0·62 0·68 .. .. ..
March 0·41 0·34 0·37 0·77 0·66 0·71 .. .. ..
April 0·44 0·39 0·43 0·93 0·72 0·78 .. .. ..
May 0·60 0·44 0·54 1·10 0·84 1·00 .. .. ..
June 0·55 0·45 0·50 1·22 1·07 1·15 .. .. ..
July 0·46 0·41 0·44 1·37 1·17 1·24 .. .. ..
August 0·45 0·38 0·42 1·22 1·00 1·14 .. .. ..
September 0·41 0·37 0·39 1·03 0·95 0·98 .. .. ..
October 0·40 0·32 0·35 1·17 0·99 1·07 .. .. ..
November 0·41 0·33 0·37 1·27 1·05 1·16 .. .. ..
December 0·43 0·28 0·36 1·24 1·12 1·16 .. .. ..
Mean. .. .. 0·41 .. .. 0·96 .. .. ..

Table LIV.—Wadelai gauges.

Year. Date. Jan. Feb. Mar. Apr. May. Jun. Jul. Aug. Sep. Oct. Nov. Dec.
1901 1 .. .. .. .. .. .. .. .. .. .. .. 0·74
5 .. .. .. .. .. .. .. .. .. .. .. 0·66
10 .. .. .. .. .. .. .. .. .. .. 0·69 0·66
15 .. .. .. .. .. .. .. .. .. .. 0·69 0·64
20 .. .. .. .. .. .. .. .. .. .. 0·67 0·62
25 .. .. .. .. .. .. .. .. .. .. 0·75 0·58
30 .. .. .. .. .. .. .. .. .. .. 0·74 0·58
Mean .. .. .. .. .. .. .. .. .. .. 0·72 0·63
1902 1 0·58 0·30 0·25 0·13 0·10 0·15 0·10 0·20 0·29 0·33 0·71 0·86
5 0·55 0·32 0·28 0·09 0·13 0·15 0·11 0·19 0·43 0·41 0·71 0·89
10 0·53 0·27 0·25 0·09 0·14 .. 0·08 0·25 0·51 0·38 0·61 0·91
15 0·43 0·22 0·18 0·08 0·16 0·10 0·18 0·18 0·33 0·52 0·81 0·86
20 0·38 0·25 0·20 0·10 0·25 0·08 0·27 0·20 0·33 0·66 0·86 0·85
25 0·36 0·28 0·20 0·11 0·23 0·13 0·20 0·33 0·30 0·51 0·75 0·82
30 0·32 .. 0·13 0·10 0·18 0·10 0·19 0·28 0·33 0·65 0·86 0·76
Mean 0·44 0·26 0·20 0·09 0·17 0·12 0·15 0·24 0·37 0·49 0·76 0·85
1903 1 0·76 0·69 0·58 0·53 0·53 0·56 1·02 1·07 1·07 1·60 1·70 1·93
5 0·76 0·69 0·61 0·51 0·56 0·61 0·84 1·12 1·07 1·60 1·70 1·93
10 0·76 0·67 0·57 0·53 0·56 0·76 0·89 1·07 1·12 1·60 1·83 1·93
15 0·74 0·61 0·56 0·46 0·58 0·79 0·84 1·17 1·37 1·60 1·83 1·93
20 0·74 0·63 0·55 0·51 0·66 0·79 0·89 1·14 1·45 1·57 1·88 1·93
25 0·74 0·61 0·53 0·48 0·61 0·81 1·12 1·12 1·52 1·65 1·90 1·90
30 0·76 .. 0·53 0·53 0·61 1·00 1·07 1·07 1·60 1·68 1·93 1·90
Mean 0·75 0·64 0·56 0·50 0·59 0·77 0·95 1·12 1·32 1·63 1·84 1·92
1904 1 1·90 1·90 1·70 1·70 .. 1·74 .. .. .. .. .. ..
5 1·90 1·90 1·73 1·70 .. .. .. .. .. .. .. ..
10 1·90 1·87 1·69 1·70 .. .. .. .. .. .. .. ..
15 1·90 1·78 1·68 1·71 .. .. .. .. .. .. .. ..
20 1·90 1·73 1·68 1·71 .. .. .. .. .. .. .. ..
25 1·90 1·74 1·68 1·74 .. .. .. .. .. .. .. ..
30 1·90 .. 1·71 1·74 .. .. .. .. .. .. .. ..
Mean 1·90 1·80 1·69 1·71 .. .. .. .. .. .. .. ..

Table LV.—Gondokoro gauges.

Table LXXI.—Cairo gauge. Pics referred to metres with Zero at R.L. 12·25 metres.

1901
Date. Month. Date. May. June. July. Au-
gust.		 Sep-
tem-
ber.		 Date. Month.
Jan. Oct.
1 ·22 1 0·34 0·44 0·33 0·34 0·63 1 0·41
5 ·20 2 0·34 0·42 0·33 0·34 0·63 5 0·39
10 ·18 3 0·38 0·43 0·32 0·35 0·64 10 0·51
15 ·17 4 0·40 0·43 0·33 0·34 0·63 15 0·60
20 ·12 5 0·71 0·45 0·33 0·43 0·63 20 0·71
25 ·12 6 0·56 0·43 0·60 0·54 0·69 25 0·67
30 ·12 7 0·52 0·41 0·47 0·44 0·63 30 0·69
Mean ·15 8 0·46 0·41 0·37 0·47 0·67 Mean 0·60
Feb. 9 0·42 0·41 0·59 0·64 0·67 Nov.
1 ·12 10 0·42 0·41 0·39 0·63 0·67 1 0·64
5 ·12 11 0·42 0·41 0·35 0·62 0·65 5 0·67
10 ·12 12 0·56 0·41 0·34 0·46 0·66 10 0·64
15 ·11 13 0·38 0·40 0·34 0·41 0·63 15 0·49
20 ·10 14 0·38 0·40 0·56 0·48 0·63 20 0·57
25 ·10 15 0·40 0·40 0·52 0·46 0·56 25 0·59
28 ·09 16 0·36 0·40 0·56 0·48 0·47 30 0·60
Mean ·11 17 0·34 0·40 0·61 1·09 0·43 Mean 0·61
March 18 0·36 0·40 0·43 1·09 0·41 Dec.
1 ·11 19 0·34 0·40 0·35 0·62 0·39 1 0·61
5 ·10 20 0·34 0·40 0·35 0·46 0·36 5 0·59
10 ·10 21 0·36 0·40 0·36 0·44 0·43 10 0·57
15 ·12 22 0·46 0·40 0·34 0·72 0·45 15 0·53
20 ·26 23 0·40 0·40 0·34 0·52 0·49 20 0·49
25 ·22 24 0·40 0·40 0·35 0·54 0·45 25 0·47
30 ·27 25 0·42 0·36 0·34 0·43 0·45 30 0·45
Mean ·18 26 0·52 0·42 0·36 1·24 0·43 Mean 0·52
April 27 0·42 0·54 0·35 0·67 0·41
1 0·08 28 0·46 0·40 0·35 0·66 0·39
5 0·08 29 0·46 0·34 0·35 0·62 0·41
10 0·14 30 0·46 0·34 0·35 .. 0·41
15 0·32 31 0·46 .. 0·35 .. ..
20 0·44 Mean 0·43 0·40 0·40 0·57 0·53
25 0·42
30 0·30
Mean 0·25
1902
Date. Month. Date. May. June. July. Au-
gust.		 Sep-
tem-
ber.		 Date. Month.
Jan. Oct.
1 0·45 1 0·19 0·06 -0·01 0·44 0·54 1 0·48
5 0·43 2 0·20 0·08 0·02 0·36 0·52 5 0·26
10 0·43 3 0·22 0·14 0·02 0·44 0·74 10 0·54
15 0·47 4 0·26 0·11 0·04 0·54 1·04 15 0·79
20 0·45 5 0·24 0·09 0·71 0·49 0·94 20 0·80
25 0·41 6 0·19 0·09 0·34 0·42 0·90 25 0·76
30 0·41 7 0·19 -0·03 0·08 0·48 1·24 30 0·99
Mean 0·43 8 0·14 0·04 0·04 1·54 0·96 Mean 0·71
Feb. 9 0·16 0·09 0·04 1·09 0·84 Nov.
1 0·39 10 0·18 0·06 -0·01 1·52 1·04 1 1·07
5 0·36 11 0·34 0·03 -0·01 1·49 0·99 5 0·77
10 0·35 12 0·60 0·07 0·04 1·44 0·77 10 0·84
15 0·33 13 0·48 0·02 0·04 1·42 0·74 15 —
20 0·33 14 0·44 -0·01 0·24 1·46 0·84 20 1·23
25 0·36 15 0·51 -0·06 0·04 1·42 0·96 25 0·99
28 0·40 16 0·45 -0·03 0·02 1·42 1·28 30 0·96
Mean 0·35 17 0·39 -0·01 -0·01 1·44 0·94 Mean 1·00
March 18 0·53 -0·08 -0·01 1·38 0·94 Dec.
1 0·34 19 0·57 -0·06 0·09 1·32 0·84 1 0·94
5 0·36 20 0·64 -0·03 0·12 1·38 0·89 5 0·94
10 0·38 21 0·46 -0·06 0·40 1·46 0·82 10 0·92
15 0·46 22 0·39 -0·09 0·87 1·52 0·76 15 0·89
20 0·50 23 0·30 -0·14 0·48 1·62 0·62 20 0·85
25 0·34 24 0·27 +0·04 0·30 1·74 0·64 25 0·81
30 0·26 25 0·24 0·01 0·26 1·52 0·91 30 0·74
Mean 0·40 26 0·19 0·02 0·24 0·54 0·66 Mean 0·87
April 27 0·16 -0·06 0·22 0·94 0·62
1 0·14 28 0·14 -0·04 0·22 0·74 0·54
5 0·13 29 0·11 -0·01 0·46 0·70 0·54
10 0·04 30 0·07 -0·02 0·54 0·57
15 -0·01 31 0·04 .. 0·58 0·60 ..
20 0·19 Mean 0·30 0·01 0·19 1·09 0·82
25 0·05
30 0·13
Mean 0·07
1903
Date. Month. Date. May. June. July. Au-
gust.		 Sep-
tem-
ber.		 Date. Month.
Jan. Oct.
1 0·74 1 0·72 1·15 1·37 1·55 1·86 1 2·18
5 0·71 2 1·70 1·06 1·38 1·57 1·82 5 2·11
10 0·66 3 0·68 1·06 1·46 1·65 1·90 10 2·12
15 0·63 4 0·68 1·06 1·43 1·65 2·54 15 2·45
20 0·63 5 0·70 1·00 1·39 1·72 2·24 20 2·06
25 0·61 6 0·98 1·10 1·44 1·61 2·23 25 2·20
30 0·63 7 0·92 1·61 1·46 1·73 2·71 30 2·20
Mean 0·65 8 0·85 1·36 1·51 2·16 2·50 Mean 2·16
Feb. 9 0·89 1·35 1·49 2·08 2·33 Nov.
1 0·62 10 1·06 1·10 1·46 2·03 2·29 1 2·20
5 0·61 11 0·80 1·07 1·41 2·50 2·24 5 2·13
10 0·63 12 1·42 1·06 1·45 2·03 2·16 10 2·05
15 0·58 13 1·48 1·09 1·56 2·07 2·09 15 1·92
20 0·59 14 0·85 1·08 1·49 1·86 2·07 20 1·91
25 0·56 15 0·85 1·06 1·35 2·12 2·20 25 1·90
28 0·53 16 0·89 1·55 1·40 1·99 2·23 30 1·77
Mean 0·59 17 0·86 1·47 1·35 1·90 2·37 Mean 1·96
March 18 0·85 1·44 1·40 1·93 2·48 Dec.
1 0·51 19 0·85 1·40 1·40 1·86 2·57 1 1·77
5 0·51 20 0·86 1·44 1·40 1·85 2·70 5 0·89
10 0·51 21 0·86 1·40< /td> 1·41 1·90 2·76 10 0·86
15 0·51 22 1·35 1·52 1·52 1·95 2·76 15 0·81
20 0·52 23 1·52 1·40 1·61 1·86 2·96 20 0·79
25 0·51 24 1·02 1·40 1·52 1·82 2·96 25 0·79
30 0·50 25 1·00 1·37 1·55 1·83 2·58 30 0·76
Mean 0·51 26 0·97 1·27 1·56 2·20 2·45 Mean 0·88
April. 27 1·03 1·30 1·67 2·16 2·33
1 0·50 28 1·00 1·32 1·61 2·07 2·23
5 0·48 29 0·90 1·43 1·65 1·82 2·20
10 0·48 30 0·89 1·35 1·63 1·88 2·18
15 0·55 31 0·91 .. 1·52 1·90 ..
20 0·57 Mean 0·95 1·27 1·48 1·91 2·36
25 0·57
30 0·64
Mean 0·53
1904
Date. Month. Date. May. June.
Jan.
1 0·79 1 0·68 0·90
5 0·78 2 0·68 0·90
10 0·78 3 0·70 0·90
15 0·76 4 0·70 0·90
20 0·84 5 0·70 0·90
25 0·84 6 0·70 0·88
30 0·82 7 0·68 0·84
Mean. 0·80 8 0·68 0·80
Feb. 9 0·68 0·76
1 0·82 10 0·68 0·76
5 0·80 11 0·78 0·74
10 0·74 12 0·78 0·72
15 0·72 13 0·84 0·74
20 0·70 14 0·84 0·72
25 0·68 15 0·80 0·72
28 0·74 16 0·80 0·70
Mean. 0·73 17 0·76 0·70
March 18 0·78 0·70
1 0·68 19 0·80 0·74
5 0·70 20 0·80 0·82
10 0·66 21 0·84 0·70
15 0·66 22 0·88 0·70
20 0·66

Table LVI.—Mongalla gauges.

1903
Date. Month. Date. May. June. July. Au-
gust.		 Sep-
tem-
ber.		 Date. Month.
January. October.
1 1 1·65 1·93 2·19 2·52 1 2·83
5 2 1·47 1·89 2·50 2·45 5 2·83
10 3 1·47 1·79 2·34 2·58 10 2·81
15 4 1·51 1·86 2·30 2·73 15 2·91
20 5 1·75 1·91 2·28 2·85 20 2·80
25 6 1·96 1·86 2·21 2·90 25 2·80
30 7 1·75 1·82 2·14 3·02 30 2·87
Mean. 8 1·91 1·75 2·12 3·16 Mean. 2·83
February. 9 1·89 1·84 2·59 3·14 Nov.
1 10 1·89 1·84 2·63 3·08 1 2·84
5 11 1·58 1·82 2·73 2·90 5 2·81
10 12 1·58 1·75 2·73 2·84 10 2·81
15 13 1·61 1·75 2·68 2·82 15 2·79
20 14 1·61 1·93 2·66 2·82 20 2·66
25 15 1·98 1·86 2·63 2·82 25 2·35
28 16 1·98 1·86 2·52 2·84 30 2·27
Mean. 17 2·10 1·89 2·56 2·92 Mean. 2·64
March. 18 2·10 1·82 2·56 3·06 Dec.
1 19 2·10 1·96 2·63 3·12 1 2·26
5 20 1·82 1·93 2·63 3·18 5 2·21
10 21 1·95 2·00 2·59 3·30 10 2·17
15 22 1·89 2·00 2·65 3·40 15 2·14
20 23 1·86 2·05 2·66 3·52 20 2·10
25 24 1·82 2·05 2·63 3·54 25 2·03
30 25 1·75 2·07 2·61 3·42 30 2·02
Mean. 26 1·72 2·07 2·49 3·32 Mean. 2·13
April.
1 0·83 27 1·75 2·12 2·52 3·18
5 0·87 28 1·68 2·13 2·52 3·05
10 0·90 29 1·89 2·16 .. 3·00
15 0·89 30 1·93 2·21 .. 2·92
20 0·96 31 .. 2·21
25 1·14 Mean. 1·82 1·96 2·49 2·97
30 0·99
Mean. 0·92
1904
Date. Month. Date. May. June. July. Au-
gust.		 Sep-
tem-
ber.		 Date. Month.
January. October.
1 2·03 1 1·91 2·17
5 2·00 2 1·89 2·24
10 1·98 3 1·89 2·17
15 1·97 4 1·89 2·21
20 1·96 5 1·89 2·17
25 1·92 6 1·96 2·17
30 1·91 7 1·89 2·14
Mean. 1·97 8 1·89 2·10
February. 9 1·89 2·07
1 1·91 10 1·89 2·03
5 1·89 11 1·96 2·00
10 1·86 12 2·03 2·00
15 1·82 13 2·10 2·00
20 1·82 14 2·03 2·00
25 1·82 15 2·07 2·00
28 1·82 16 2·03 1·96
Mean. 1·85 17 2·03 1·96
March. 18 2·03 1·96
1 1·82 19 2·03 2·10
5 1·81 20 2·07 2·03
10 1·79 21 2·07 2·00
15 1·82 22 2·17 1·98
20 1·77 23 2·17 1·98
25 1·79 24 2·17 2·00
30 1·96 25 2·21 2·07
Mean. 1·82 26 2·21 2·07
April.
1 1·93 27 2·17 2·10
5 1·82 28 2·14 2·10
10 1·82 29 2·12 2·07
15 1·93 30 2·10 2·03
20 2·07 31 2·21
25 1·96 Mean. 2·03 2·07
30 1·89
Mean. 1·91

Table LVII.—Sobat River gauges at Nasser.

Year. Date. Jan. Feb. Mar. Apr. May. Jun. Jul. Aug. Sep. Oct. Nov. Dec.
1903 1 .. .. .. .. .. .. .. .. .. .. 6·30 ..
5 .. .. .. .. .. .. .. .. .. .. 6·30 ..
10 .. .. .. .. .. .. .. .. .. .. 6·28 ..
15 .. .. .. .. .. .. .. .. .. .. 6·24 ..
20 .. .. .. .. .. .. .. .. .. .. 6·18 ..
25 .. .. .. .. .. .. .. .. .. 6·46 6·14 ..
30 .. .. .. .. .. .. .. .. .. 6·29 .. ..
Mean .. .. .. .. .. .. .. .. .. .. 6·23 ..
1904 1 5·11 2·02 1·26 2·00 1·96 4·59 .. .. .. .. .. ..
5 4·99 1·92 1·34 2·00 2·26 4·68 .. .. .. .. .. ..
10 4·49 1·82 1·40 1·82 2·88 4·82 .. .. .. .. .. ..
15 3·88 1·60 1·86 1·90 3·42 5·02 .. .. .. .. .. ..
20 2·92 1·50 2·14 2·38 4·10 .. .. .. .. .. .. ..
25 2·24 1·36 1·88 2·38 .. .. .. .. .. .. .. ..
30 2·10 .. 2·00 2·00 .. .. .. .. .. .. .. ..
Mean 3·43 1·64 1·71 2·07 .. .. .. .. .. .. .. ..

Table LVIII.—Sobat River gauges at Dulaib Hilla.

Year. Date. Jan. Feb. Mar. Apr. May. Jun. Jul. Aug. Sep. Oct. Nov. Dec.
1903 1 .. .. .. .. 0·00 1·11 1·71 2·30 2·80 3·26 3·48 3·52
5 .. .. .. .. 0·09 1·22 1·80 2·39 2·86 3·27 3·48 3·52
10 .. .. .. .. 0·28 1·36 1·87 2·45 2·93 3·36 3·49 3·53
15 .. .. .. .. 0·40 1·53 1·95 2·52 3·05 3·42 3·49 3·54
20 .. .. .. .. 0·62 1·56 2·08 2·57 3·11 3·44 3·50 3·53
25 .. .. .. .. 0·81 1·65 2·18 2·70 3·16 3·45 3·50 3·51
30 .. .. .. .. 1·00 1·70 2·28 2·74 3·26 3·47 3·51 3·45
Mean .. .. .. .. 0·47 1·46 1·99 2·54 3·03 3·40 3·49 3·51
1904 1 3·42 1·92 0·93 0·88 0·81 1·56 2·00 .. .. .. .. ..
5 3·36 1·65 0·87 0·88 0·73 1·65 .. .. .. .. .. ..
10 3·19 1·42 0·88 0·86 0·86 1·67 .. .. .. .. .. ..
15 3·04 1·24 0·91 0·78 0·99 1·72 .. .. .. .. .. ..
20 2·74 1·12 0·97 0·81 1·21 1·83 .. .. .. .. .. ..
25 2·36 1·00 1·00 0·90 1·39 1·90 .. .. .. .. .. ..
30 2·01 .. 0·91 0·84 1·49 1·98 .. .. .. .. .. ..
Mean 2·77 1·30 0·92 0·85 1·08 1·76 .. .. .. .. .. ..

Table LIX.— White Nile gauges at Tewfikieh.

Year. Date. Jan. Feb. Mar. Apr. May. Jun. Jul. Aug. Sep. Oct. Nov. Dec.
1903 1 .. .. .. .. 0·24 1·19 1·71 2·11 2·76 3·47 3·53 3·56
5 .. .. .. .. 0·24 1·30 1·78 2·15 2·86 3·55 3·54 3·58
10 .. .. .. .. 0·34 1·42 1·88 .. 3·07 3·39 3·54 3·58
15 .. .. .. .. 0·53 1·51 1·89 .. 3·20 3·41 3·55 3·59
20 .. .. .. 0·22 0·74 1·58 2·01 .. 3·26 3·46 3·56 3·59
25 .. .. .. 0·24 .. 1·61 2·09 .. 3·37 3·50 3·55 3·58
30 .. .. .. 0·24 .. 1·69 2·16 .. 3·46 3·52 3·56 3·57
Mean .. .. .. .. .. 1·48 1·94 .. 3·15 3·44 3·55 3·58
1904 1 3·57 2·07 0·97 0·91 0·84 1·56 .. .. .. .. .. ..
5 3·54 1·76 0·91 0·91 0·74 1·67 .. .. .. .. .. ..
10 3·48 1·48 0·92 0·89 0·86 1·69 .. .. .. .. .. ..
15 3·36 1·25 0·94 0·81 1·02 1·74 .. 2·79 .. .. .. ..
20 3·10 1·09 1·00 0·84 1·25 1·87 .. 2·87 .. .. .. ..
25 2·69 1·07 1·03 0·93 1·43 1·94 .. 2·92 .. .. .. ..
30 2·23 .. 0·97 0·84 1·53 2·02 .. 2·98 .. .. .. ..
Mean 3·16 1·37 0·96 0·88 1·11 1·79 .. .. .. .. .. ..

Table LX.—Duem gauges.

Year. Date. Jan. Feb. Mar. Apr. May. Jun. Jul. Aug. Sep. Oct. Nov. Dec.
1901 1 .. 0·91 0·66 0·43 0·61 0·59 1·43 2·88 4·10 3·40 2·40 2·12
5 .. 0·90 0·66 0·40 0·64 0·66 1·44 3·18 4·28 3·36 2·35 2·10
10 .. 0·88 0·60 0·46 0·62 0·77 1·54 3·38 4·16 2·90 2·33 2·00
15 .. 0·85 0·51 0·27 0·51 0·91 1·78 3·80 4·22 2·70 2·28 1·86
20 .. 0·80 0·47 0·36 0·52 1·08 1·96 4·12 4·08 2·85 2·30 1·80
25 .. 0·75 0·45 0·46 0·52 1·22 1·98 4·12 3·70 2·38 2·30 1·64
30 .. 0·68 0·45 0·58 0·51 1·32 2·48 4·04 3·46 2·42 2·14 1·46
Mean .. 0·82 0·54 0·42 0·56 0·94 1·80 3·65 4·00 2·84 2·30 1·85
1902 1 1·38 0·78 0·60 0·59 0·56 0·77 1·28 2·12 3·52 3·50 2·36 ..
5 1·24 0·74 0·58 0·62 0·52 0·81 1·40 2·20 3·49 3·48 2·26 ..
10 1·16 0·73 0·51 0·58 0·49 0·95 1·48 2·55 3·62 3·36 2·20 ..
15 1·07 0·66 0·54 0·58 0·54 1·04 1·60 2·82 3·72 3·00 2·14 2·02
20 0·95 0·60 0·60 0·55 0·59 1·08 1·72 2·91 3·72 2·68 2·11 1·99
25 0·90 0·60 0·66 0·61 0·66 1·14 1·89 3·17 3·58 2·57 2·00 2·01
30 0·80 0·60 0·62 0·57 0·74 1·24 2·10 3·52 3·51 2·45 2·00 1·98
Mean 1·07 0·67 0·59 0·58 0·58 1·00 1·64 2·75 3·60 3·00 2·15 ..
1903 1 1·90 1·04 0·72 0·41 0·38 0·74 1·31 1·27 4·33 4·18 3·13 2·34
5 1·90 1·02 0·71 0·40 0·34 0·82 1·34 2·62 4·30 4·01 3·02 2·16
10 1·75 0·99 0·64 0·42 0·33 0·98 1·54 3·18 4·48 3·82 2·82 1·96
15 1·45 0·89 0·55 0·41 0·36 1·07 1·74 3·70 4·38 3·62 2·66 1·92
20 1·39 0·88 0·48 0·38 0·41 1·20 1·80 3·84 4·18 3·36 2·56 1·84
25 1·20 0·80 0·47 0·37 0·52 1·28 2·03 4·12 4·28 3·40 2·42 1·76
30 1·06 0·77 0·42 0·37 0·61 1·33 2·24 4·22 4·22 3·41 2·36 1·70
Mean 1·52 0·90 0·57 0·40 0·42 1·06 1·70 3·42 4·30 3·70 2·70 1·95
1904 1 1·70 1·38 0·88 0·26 0·19 0·24 0·50 2·00 2·64 .. .. ..
5 1·66 1·32 0·66 0·30 0·18 0·30 0·51 2·90 2·80 .. .. ..
10 1·62 1·28 0·50 0·28 0·16 0·40 0·70 3·40 3·00 .. .. ..
15 1·60 1·20 0·35 0·25 0·15 0·41 0·95 3·15 .. .. .. ..
20 1·54 1·14 0·30 0·22 0·14 0·48 1·30 2·70 .. .. .. ..
25 1·46 1·00 0·28 0·21 0·22 0·49 1·55 2·45 .. .. .. ..
30 1·40 0·94 0·26 0·19 0·24 0·50 1·90 2·64 .. .. .. ..
Mean 1·57 1·18 0·46 0·24 0·18 0·40 1·06 2·75 .. .. .. ..

Table LXI.—Wad Medani gauges.

ge br">1·52

Table LXVI.—AssuÂn Reservoir gauges.

1901
Date. Month. Date. May. June. July. Au-
gust.		 Sept. Date. Month.
January .. .. .. .. .. .. October.
.. .. .. .. .. .. 1 ..
.. .. .. .. .. .. 5 ..
.. .. .. .. .. .. 10 ..
.. .. .. .. .. .. 15 ..
.. .. .. .. .. .. 20 ..
.. .. .. .. .. .. 25 ..
.. .. .. .. .. .. 30 ..
.. .. .. .. .. .. Mean. ..
February .. .. .. .. .. .. Novemb.
.. .. .. .. .. .. 1 4·49
.. .. .. .. .. .. 5 4·19
.. .. .. .. .. .. 10 3·85
.. .. .. .. .. .. 15 3·53
.. .. .. .. .. .. 20 3·25
.. .. .. .. .. .. 25 3·07
.. .. .. .. .. .. 30 3·01
.. .. .. .. .. .. Mean. 3·58
March .. .. .. .. .. .. Decemb.
.. .. .. .. .. .. 1 2·89
.. .. .. .. .. .. 5 2·67
.. .. .. .. .. .. 10 2·47
.. .. .. .. .. .. 15 2·33
.. .. .. .. .. .. 20 2·19
.. .. .. .. .. .. 25 2·05
.. .. .. .. .. .. 30 1·91
.. .. .. .. .. .. Mean. 2·33
April .. .. .. .. .. ..
1902
Date. Month. Date. May. June. July. Au-
gust.		 Sept. Date. Month.
January. October.
1 1·89 1 0·39 1·59 3·80 7·56 9·62 1 9·94
5 1·81 2 0·33 2·11 3·80 7·86 10·12 5 9·30
10 1·69 3 0·33 2·11 3·70 7·94 10·42 10 8·00
15 1·61 4 0·37 2·07 3·80 8·32 10·32 15 7·38
20 1·55 5 0·39 2·03 4·16 8·42 10·30 20 7·08
25 1·49 6 0·41 1·97 4·46 8·56 10·10 25 6·68
30 1·39 7 0·39 1·91 4·68 8·76 10·40 30 6·14
Mean. 1·62 8 0·39 1·97 4·64 8·86 10·50 Mean. 7·65
February. 9 0·37 2·25 4·56 9·00 10·40 Nov.
1 1·37 10 0·35 2·15 4·38 9·10 10·40 1 5·90
5 1·31 11 0·41 2·00 4·48 9·14 10·28 5 5·66
10 1·21 12 0·48 1·77 4·28 9·16 10·60 10 5·24
15 1·13 13 0·51 1·67 4·56 9·14 10·70 15 4·94
20 1·07 14 0·61 1·61 4·70 9·02 10·48 20 4·74
25 1·03 15 0·77 1·65 4·86 8·96 10·28 25 4·60
28 0·99 16 0·89 1·99 4·80 8·66 10·32 30 4·28
Mean. 1·15 17 0·87 2·57 5·10 8·66 10·32 Mean. 5·02
March. 18 1·01 2·97 5·20 8·96 10·00 Dec.
1 0·98 19 0·95 3·27 5·40 9·48 10·30 1 —
5 0·91 20 0·93 3·39 5·48 10·08 10·26 5 4·00
10 0·79 21 0·71 3·39 5·42 10·00 10·00 10 3·73
15 0·87 22 0·61 3·19 5·66 9·66 9·80 15 3·54
20 1·01 23 0·65 3·04 5·70 9·46 9·80 20 3·40
25 0·84 24 0·61 2·94 5·66 9·52 10·00 25 3·18
30 0·67 25 0·57 3·04 5·76 9·92 10·10 30 2·94
Mean. 0·87 26 0·61 3·89 5·74 10·26 9·90 Mean. 3·51
April.
1 0·63 27 0·65 4·29 5·72 10·46 9·95
5 0·55 28 0·71 4·24 6·36 10·52 10·00
10 0·43 29 0·91 4·24 6·79 10·32 10·26
15 0·43 30 0·11 4·28 7·06 10·02 10·26
20 0·51 31 0·21 7·28 9·72
25 0·57 Mean. 0·56 2·65 5·09 9·21 10·20
30 0·41
Mean. 0·50
1903
Date. Month. Date. May. June. July. Au-
gust.		 Sept. Date. Month.
January. October.
1 2·88 1 0·96 3·15 4·71 7·75 11·02 1 9·48
5 2·70 2 0·96 3·25 5·27 9·11 10·68 5 8·84
10 2·56 3 0·94 3·85 5·61 9·81 10·44 10 8·42
15 2·46 4 0·92 4·05 5·81 10·11 10·40 15 7·94
20 2·36 5 0·90 3·61 5·85 10·11 10·50 20 8·84
25 2·26 6 0·88 3·65 6·10 10·07 10·64 25 8·25
30 2·16 7 0·88 3·49 6·23 10·21 10·56 30 7·33
Mean. 2·42 8 0·90 3·41 6·45 10·15 10·50 Mean. 8·41
February. 9 0·86 3·63 6·55 9·99 10·74 Nov.
1 2·12 10 0·82 3·79 6·57 9·89 10·52 1 7·19
5 2·04 11 0·84 3·90 6·81 10·19 10·46 5 6·68
10 2·00 12 0·86 4·20 7·03 10·59 10·40 10 6·12
15 1·90 13 0·88 4·30 7·13 10·71 10·06 15 5·70
20 1·84 14 0·92 4·42 6·77 10·57 9·96 20 5·55
25 1·72 15 0·98 4·64 6·74 10·32 9·92 25 5·14
28 1·70 16 1·02 4·82 6·57 10·49 9·94 30 4·96
Mean. 1·91 17 1·06 4·70 6·91 10·41 9·92 Mean. 5·83
March. 18 1·14 4·62 7·05 10·49 9·96 Dec.
1 1·68 19 1·26 4·52 7·05 10·49 10·12 1 4·92
5 1·60 20 1·40 4·32 7·39 10·73 10·32 5 4·80
10 1·52 21 1·66 4·30 8·01 10·71 10·42 10 4·54
15 1·44 22 1·76 4·28 7·97 10·71 10·56 15 4·40
20 1·34 23 1·92 4·28 7·81 10·47 10·52 20 4·10
25 1·32 24 2·06 4·25 7·87 10·39 10·46 25 3·84
30 1·30 25 2·20 4·51 7·75 10·39 10·32 30 3·60
Mean. 1·44 26 2·74 4·31 7·77 10·47 10·18 Mean. 4·28
April. 27 1·51 4·21 7·80 10·41 9·72
1 1·24 28 3·43 4·17 7·73 10·61 9·42
5 1·10 29 3·39 4·13 7·77 10·67 9·24
10 1·10 30 3·34 4·41 7·67 10·80 9·22
15 1·08 31 3·25 7·70 10·92
20 1·04 Mean. 1·50 4·10 6·92 10·28 10·23
25 0·98
30 0·98
Mean. 1·06
1904
Date. Month. Date. May. June. July. Au-
gust.		 Sept.
January.
1 3·64 1 1·50 2·36 4·24 9·60 9·50
5 3·56 2 1·48 2·50 4·58 10·30 9·58
10 3·48 3 1·66 2·88 4·82 10·10 9·50
15 3·36 4 1·66 3·32 5·22 9·90 9·50
20 3·15 5 1·64 3·40 5·52 9·70 9·40
25 3·08 6 1·64 3·28 5·52 9·60 9·30
30 2·80 7 1·62 3·24 5·22 9·40 9·30
Mean. 3·28 8 1·64 3·08 4·92 9·50 9·20
February. 9 1·56 2·98 4·82 9·50 9·20
1 2·76 10 1·62 3·00 4·96 9·40 9·29
5 2·58 11 1·66 2·86 5·80 9·30 9·30
10 2·46 12 1·76 2·78 6·18 9·20 9·30
15 2·22 13 1·80 2·78 6·10 9·20 9·40
20 2·06 14 2·00 2·46 6·48 9·20 9·44
25 1·86 15 2·00 2·34 7·12 9·00
28 1·78 16 1·88 2·32 6·92 8·80
Mean. 2·23 17 1·88 2·30 6·90 8·80
March. 18 1·82 2·34 6·80 8·90
1 1·72 19 1·64 2·34 6·70 8·96
5 1·70 20 1·70 2·34 6·80 9·10
10 1·64 21 1·72 2·50 7·10 9·00
15 1·50 22 1·72 2·42 7·30 9·10
20 1·44 23 1·68 2·48 7·20 9·20
25 1·70 24 1·76 2·52 7·40 9·10
30 1·80 25 1·98 2·54 7·50 9·30
Mean. 1·64 26 2·46 2·68 8·04 9·72
April. 27 2·50 2·80 8·22 9·50
1 1·80 28 2·52 2·94 8·00 9·30
5 1·76 29 2·48 — 8·04 9·20
10 1·64 30 2·46 3·98 8·70 9·30
15

Table LXII.—Khartoum gauges.

Date 1874 1877 1878
May June July Aug. Sept. Oct. May June July Aug. Sept. Oct. May June July Aug. Sept. Oct.
1 .. 1·01 2·50 5·60 7·18 6·66 .. ·97 2·81 5·20 4·97 4·30 .. ·02 2·63 4·30 6·46 7·20
2 .. 1·06 2·50 5·65 7·18 6·66 .. ·97 2·77 4·79 4·97 4·30 .. ·08 2·54 4·41 6·59 7·11
3 .. 1·22 2·50 5·78 7·22 6·55 .. ·97 2·68 4·79 4·84 4·25 .. ·61 2·50 4·70 6·64 7·18
4 .. 1·44 2·59 5·85 7·27 6·50 .. ·97 2·54 4·54 4·88 4·21 .. ·79 2·45 5·11 6·75 7·00
5 .. 1·55 2·68 6·01 7·27 6·41 .. ·97 2·54 4·43 4·88 4·21 .. 1·13 2·45 5·31 6·82 6·82
6 .. 1·60 2·68 6·14 7·20 6·30 .. ·92 2·68 4·43 4·88 4·21 .. 1·42 2·68 5·38 6·89 6·73
7 .. 1·60 2·75 6·23 7·13 6·26 .. 1·01 2·86 4·66 4·97 4·12 .. 1·49 2·77 5·51 6·98 6·68
8 ·07 1·80 2·86 6·32 7·18 6·19 .. ·88 2·95 4·84 4·97 4·12 .. 1·55 2·95 5·51 6·95 6·64
9 ·14 1·98 2·99 6·46 7·18 6·08 .. ·83 3·04 4·84 4·97 3·98 .. 1·89 2·97 5·51 7·04 6·59
10 ·50 1·98 3·04 6·55 7·13 5·92 ·02 ·83 3·22 4·84 4·97 3·98 ·05 1·62 2·97 5·51 7·09 6·55
11 ·50 1·76 3·22 6·68 7·09 5·78 ·02 ·88 3·35 4·97 4·97 3·98 ·05 1·62 3·04 5·85 7·16 6·64
12 ·86 1·76 3·31 6·77 7·13 5·65 ·02 1·24 3·35 5·06 5·00 3·98 ·05 1·62 3·29 5·94 7·25 6·35
13 ·97 1·76 3·22 6·84 7·22 5·65 ·02 1·37 3·22 5·06 5·06 3·98 ·05 1·64 3·44 6·03 7·25 6·30
14 ·97 1·76 3·49 6·84 7·18 5·60 ·02 1·37 3·22 5·06 5·06 3·87 ·05 1·73 3·51 6·05 7·31 5·26
15 ·99 1·80 3·80 6·91 7·09 5·51 ·02 1·60 3·58 4·97 5·11 3·87 ·05 1·80 3·51 6·12 7·31 6·19
16 1·04 1·85 4·03 7·04 7·04 5·44 ·02 1·73 3·62 4·97 5·11 .. ·05 1·80 3·51 6·21 7·36 6·12
17 1·15 1·91 4·12 7·13 7·04 5·38 ·02 2·05 3·67 4·97 5·06 .. ·05 1·78 3·51 6·21 7·40 6·08
18 1·28 1·91 4·25 7·04 7·04 5·31 ·02 1·96 3·67 4·97 4·97 .. ·05 1·73 3·51 6·14 7·47 6·03
19 1·35 1·91 4·52 7·00 6·93 5·11 ·02 1·87 3·89 4·97 4·97 .. ·05 1·69 3·76 6·08 7·47 5·96
20 1·58 1·91 4·61 7·04 6·89 4·97 ·02 1·87 4·03 4·97 4·97 .. ·05 1·71 4·03 6·01 7·56 5·92
21 1·77 1·96 4·84 6·91 6·89 4·84 ·11 1·87 4·12 4·93 4·97 .. ·05 1·80 4·07 6·01 7·58 5·78
22 1·60 1·96 4·88 7·00 6·82 4·70 ·34 1·96 4·21 4·93 4·84 .. -·02 1·76 4·05 5·78 7·58 5·72
23 1·46 2·00 4·97 6·93 6·82 4·61 ·38 2·05 4·30 5·02 4·84 .. 0·0 1·82 4·10 5·67 7·52 5·65
24 1·33 2·05 5·11 6·91 6·86 4·43 ·68 2·27 4·12 5·02 4·79 .. 0·0 2·05 4·30 5·76 7·43 5·56
25 1·26 2·09 5·11 6·98 6·82 4·30 ·90 2·27 4·12 5·02 4·75 .. ·14 2·21 4·30 5·92 7·43 5·46
26 1·19 2·18 5·31 7·00 6·82 4·21 1·01 2·14 4·12 5·15 4·70 .. ·11 2·25 4·21 5·92 7·43 5·38
27 1·19 2·36 5·42 7·00 6·73 4·10 1·19 2·14 4·21 5·15 4·66 .. ·05 2·27 4·21 5·94 7·38 5·49
28 1·19 2·41 5·51 7·00 6·66 4·10 1·33 2·14 4·43 5·15 4·57 .. -·02 2·41 4·21 6·14 7·38 5·24
29 1·08 2·41 5·51 7·13 6·66 4·10 1·28 2·41 4·61 5·24 4·57 .. ·05 2·50 4·23 6·14 7·38 5·20
30 1·01 2·41 5·51 7·09 6·66 4·10 1·19 2·72 4·70 5·24 4·39 .. ·02 2·61 4·30 6·32 7·27 ..
31 1·01 .. 5·56 7·13 .. 4·10 1·06 .. 4·77 5·06 .. .. ·02 .. 4·30 6·44 .. ..
Mean .. 1·85 3·98 6·67 7·01 5·34 .. 1·54 3·60 4·95 4·89 .. .. 1·62 3·49 5·74 6·87 6·16

<

Table LXV.—Mean gauges of 30 years at AssuÂn.

1901
Date. Month. Date. May. June. July. Au-
gust.		 Sept. Date. Month.
January. October.
1 1·51 1 0·45 0·47 2·35 4·90 6·10 1 4·36
5 1·44 2 0·48 0·50 2·58 4·96 6·10 5 4·04
10 1·30 3 0·46 0·60 2·75 5·00 6·05 10 3·60
15 1·17 4 0·42 0·64 2·70 5·05 5·08 15 3·44
20 1·05 5 0·42 0·81 2·57 5·05 6·08 20 3·28
25 0·93 6 0·42 0·82 2·60 5·12 5·94 25 3·12
30 0·84 7 0·40 0·85 2·60 5·28 5·88 30 2·91
Mean. 1·15 8 0·39 0·84 2·70 5·40 5·91 Mean. 3·48
February. 9 0·37 0·80 2·82 5·47 5·95 Novem.
1 0·84 10 0·34 0·77 2·90 5·55 5·98 1 2·83
5 0·81 11 0·34 0·98 2·92 5·45 5·92 5 2·67
10 0·73 12 0·32 1·28 2·97 5·40 5·98 10 2·43
15 0·67 13 0·37 1·39 3·00 5·56 5·98 15 2·28
20 0·60 14 0·25 1·51 3·08 5·70 6·00 20 2·16
25 0·45 15 0·25 1·70 3·17 5·85 5·96 25 2·00
28 0·44 16 0·25 1·60 3·30 5·89 5·93 30 1·87
Mean. 0·66 17 0·19 1·49 3·30 5·96 5·82 Mean. 2·29
March 18 0·08 1·47 3·38 5·96 5·74 Decem.
1 0·43 19 0·08 1·50 3·43 5·96 5·56 1 1·87
5 0·39 20 0·14 1·55 3·50 6·10 5·40 5 1·83
10 0·28 21 0·19 1·63 3·50 6·05 5·18 10 1·75
15 0·20 22 0·22 1·80 3·57 5·98 5·18 15 1·58
20 0·15 23 0·12 2·05 3·54 6·01 5·10 20 1·50
25 0·09 24 0·15 2·26 3·54 6·05 5·00 25 1·35
30 0·08 25 0·20 2·20 3·58 5·97 4·89 30 1·16
Mean. 0·22 26 0·18 2·00 3·74 5·80 4·84 Mean. 1·56
April 27 0·25 1·95 4·10 5·68 4·78
1 0·06 28 0·27 1·98 4·28 5·68 4·70
5 0·05 29 0·34 1·98 4·65 5·85 4·58
10 -0·05 30 0·45 2·10 4·83 5·89 4·49
15 -0·07 31 0·45 .. 4·85 6·03 ..
20 0·11 Mean. 0·30 1·38 3·32 5·63 5·57
25 0·27
30 ..
Mean. 0·09
1902
Date. Month. Date. May. June. July. Au-
gust.		 Sept. Date. Month.
January. October.
1 1·13 1 0·05 0·10 1·80 3·34 5·20 1 5·14
5 1·03 2 0·05 0·23 1·87 3·52 5·20 5 4·88
10 0·84 3 0·04 0·41 1·79 3·62 5·23 10 4·45
15 0·73 4 0·01 0·55 1·75 3·71 5·27 15 3·86
20 0·63 5 0·02 0·74 1·70 3·79 5·27 20 3·63
25 0·54 6 -0·10 0·76 1·76 3·94 5·27 25 3·35
30 0·50 7 -0·08 0·78 1·85 4·00 5·28 30 3·05
Mean. 0·75 8 -0·05 0·76 2·03 4·20 5·33 Mean. 3·97
February. 9 -0·05 0·75 2·13 4·30 5·40 Novemb.
1 0·48 10 -0·06 0·77 2·16 4·38 5·40 1 3·00
5 0·45 11 -0·07 0·84 2·07 4·40 5·36 5 2·84
10 0·38 12 -0·04 1·00 2·09 4·50 5·35 10 2·60
15 0·33 13 -0·04 0·84 2·05 4·48 5·38 15 2·44
20 0·25 14 -0·01 0·78 2·14 4·50 5·50 20 2·24
25 0·19 15 0·01 0·75 2·17 4·50 5·42 25 2·18
28 0·15 16 0·04 0·72 2·24 4·48 5·40 30 2·08
Mean. 0·32 17 0·03 0·69 2·29 4·45 5·40 Mean. 2·46
March. 18 0·08 0·74 2·33 4·39 5·40 Decemb.
1 0·14 19 0·18 0·84 2·34 4·50 5·30 1 2·06
5 0·10 20 0·14 1·06 2·36 4·61 5·39 5 1·94
10 0·09 21 0·14 1·24 2·52 4·87 5·30 10 1·83
15 0·07 22 0·16 1·36 2·54 4·93 5·24 15 1·71
20 0·15 23 0·16 1·27 2·56 4·93 5·12 20 1·62
25 0·19 24 0·09 1·29 2·62 4·90 5·10 25 1·55
30 0·07 25 0·10 1·21 2·64 4·90 5·10 30 1·43
Mean. 0·11 26 0·11 1·15 2·69 5·00 5·10 Mean. 1·71
April. 27 0·16 1·30 2·69 5·17 5·05
1 0·07 28 0·14 1·59 2·79 5·30 5·03
5 -0·02 29 0·09 1·75 2·94 5·34 5·06
10 0·01 30 0·10 1·73 2·96 5·30 5·16
15 -0·07 31 0·11 .. 3·24 5·30 ..
20 -0·01 Mean. 0·05 0·90 2·30 4·50 5·26
25 -0·04
30 0·01
Mean. -0·01
1903
Date. Month. Date. May. June. July. Au-
gust.		 Sept. Date. Month.
January. October.
1 1·40 1 -0·16 1·05 1·54 3·50 6·24 1 5·50
5 1·30 2 -0·20 1·05 1·60 3·80 6·30 5 5·40
10 1·21 3 -0·23 0·98 1·78 4·05 6·15 10 5·15
15 1·10 4 -0·26 0·98 1·95 4·40 6·20 15 4·50
20 1·02 5 -0·26 1·16 2·13 4·60 6·20 20 4·48
25 0·87 6 -0·23 1·40 2·10 4·75 6·15 25 4·40
30 0·73 7 -0·23 1·40 2·10 4·87 6·12 30 4·00
Mean. 1·07 8 -0·23 1·36 2·20 4·95 6·15 Mean. 4·74
February. 9 -0·22 1·30 2·35 5·06 6·24 Novem.
1 0·65 10 -0·24 1·25 2·48 5·06 6·14 1 3·85
5 0·61 11 -0·28 1·25 2·55 5·10 6·15 5 3·60
10 0·47 12 -0·24 1·30 2·58 5·35 6·05 10 3·25
15 0·42 13 -0·26 1·41 2·75 5·55 5·96 15 3·00
20 0·39 14 -0·25 1·56 2·80 5·65 5·90 20 2·65
25 0·25 15 -0·26 1·65 2·80 5·55 5·86 25 2·60
28 0·22 16 -0·26 1·75 2·75 5·70 5·95 30 2·45
Mean. 0·43 17 -0·23 1·85 2·75 5·80 5·88 Mean. 3·01
March. 18 -0·21 2·00 2·75 5·70 5·88 Decem.
1 0·22 19 -0·19 1·90 2·85 5·80 5·85 1 2·40
5 0·19 20 -0·18 1·85 2·95 5·80 5·90 5 2·30
10 0·13 21 -0·14 1·70 3·05 5·90 5·95 10 2·09
15 0·08 22 -0·09 1·60 3·25 5·95 6·00 15 1·93
20 0·04 23 -0·02 1·55 3·40 6·00 6·10 20 1·90
25 -0·05 24 0·12 1·55 3·40 6·00 6·10 25 1·88
30 -0·11 25 0·26 1·56 3·40 6·03 6·08 30 1·80
Mean. 0·06 26 0·33 1·58 3·42 6·08 6·02 Mean. 2·01
April. 27 0·40 1·60 3·42 6·00 5·85
1 -0·11 28 0·53 1·61 3·42 .. 5·80
5 -0·13 29 0·90 1·54 3·45 .. 5·60
10 -0·10 30 0·98 1·54 3·45 6·15 5·55
15 -0·14 31 1·01 .. 3·45 6·28 ..
20 -0·12 Mean. -0·01 1·47 2·73 5·36 6·01
25 -0·16
30 -0·18
Mean. -0·13
1904
Date. Month. Date. May. June. July. Au-
gust.		 Sept. Date. Month.
January.
1 1·80 1 0·15 0·61 1·35 5·00 5·48 .. ..
5 1·78 2 0·15 0·60 1·55 5·30 5·58 .. ..
10 1·70 3 0·15 0·60 1·79 5·50 5·58 .. ..
15 1·59 4 0·10 0·63 2·15 5·50 5·54 .. ..
20 1·55 5 0·10 0·70 2·40 5·55 5·54 .. ..
25 1·50 6 0·12 0·92 2·68 5·60 5·50 .. ..
30 1·50 7 0·29 1·17 2·76 5·58 5·50 .. ..
Mean. 1·59 8 0·10 1·23 2·76 5·58 5·46 .. ..
February. 9 0·00 1·22 2·74 5·58 5·36 .. ..
1 1·48 10 -0·01 1·20 2·76 5·58 5·34 .. ..
5 1·47 11 +0·05 1·17 2·70 5·64 5·34 .. ..
10 1·35 12 0·08 1·16 2·84 5·55 5·34 .. ..
15 1·15 13 0·08 1·15 3·05 5·48 5·34 .. ..
20 1·13 14 0·08 1·15 3·07 5·48 5·40

Table LXIII.—River Atbara gauges at Khasm el Girba.

1903
Date. Jan. Feb. Mar. Apr. May. Jun. Jul. Aug. Sep. Oct. Nov. Dec.
1 .. .. .. .. .. 1·00 2·20 4·21 4·52 2·88 .. ..
2 .. .. .. .. .. 0·93 2·18 4·00 4·52 2·78 .. ..
3 .. .. .. .. .. 0·85 2·15 3·56 4·60 2·78 .. ..
4 .. .. .. .. .. 0·85 2·74 3·25 4·70 2·90 .. ..
5 .. .. .. .. .. 0·89 2·60 3·35 4·55 2·75 .. ..
6 .. .. .. .. .. 0·89 2·30 3·27 4·66 2·67 .. ..
7 .. .. .. .. .. 0·86 2·10 3·30 4·58 2·50 .. ..
8 .. .. .. .. .. 0·97 2·10 3·07 4·50 2·50 .. ..
9 .. .. .. .. .. 1·05 2·51 3·29 4·15 2·38 .. ..
10 .. .. .. .. .. 1·11 2·35 3·72 4·30 2·30 .. ..
11 .. .. .. .. .. 1·00 2·65 4·61 3·89 2·22 .. ..
12 .. .. .. .. .. 0·97 2·31 4·37 3·95 2·17 .. ..
13 .. .. .. .. .. 0·90 2·10 4·53 3·80 2·17 .. ..
14 .. .. .. .. .. 0·90 2·10 4·60 3·84 2·08 .. ..
15 .. .. .. .. .. 0·93 2·65 4·85 3·71 2·05 .. ..
16 .. .. .. .. .. 0·98 2·28 4·80 3·88 2·10 .. ..
17 .. .. .. .. .. 1·20 2·40 4·90 4·36 2·10 .. ..
18 .. .. .. .. .. 1·50 2·37 5·50 4·20 .. .. ..
19 .. .. .. .. .. 1·70 2·55 5·50 4·00 2·05 .. ..
20 .. .. .. .. .. 1·98 2·74 5·75 4·12 .. .. ..
21 .. .. .. .. .. 1·88 2·83 5·47 3·80 .. .. ..
22 .. .. .. .. .. 1·70 2·70 5·12 3·45 .. .. ..
23 .. .. .. .. .. 1·90 2·70 4·82 3·30 .. .. ..
24 .. .. .. .. .. 1·84 3·00 4·54 3·25 .. .. ..
25 .. .. .. .. .. 2·20 2·62 4·35 3·10 .. .. ..
26 .. .. .. .. .. 1·93 2·53 4·20 2·89 .. .. ..
27 .. .. .. .. .. 2·24 2·60 4·80 3·42 .. .. ..
28 .. .. .. .. .. 2·20 2·76 4·55 3·10 .. .. ..
29 .. .. .. .. .. 2·43 2·80 4·55 3·13 .. .. ..
30 .. .. .. .. .. 2·20 3·29 4·75 3·05 .. .. ..
31 .. .. .. .. .. .. 3·54 4·45 .. .. .. ..
1904
1 .. .. .. .. .. -1·00 1·57 3·79 2·70 .. .. ..
2 .. .. .. .. .. -1·00 1·89 3·85 2·65 .. .. ..
3 .. .. .. .. .. -0·80 1·80 3·93 2·55 .. .. ..
4 .. .. .. .. .. -0·56 1·93 3·90 2·90 .. .. ..
5 .. .. .. .. .. -0·10 2·04 4·04 3·50 .. .. ..
6 .. .. .. .. .. +0·19 2·08 4·08 3·40 .. .. ..
7 .. .. .. .. .. 0·31 2·45 4·00 3·30 .. .. ..
8 .. .. .. .. .. 0·50 2·72 4·00 2·92 .. .. ..
9 .. .. .. .. .. 0·40 2·83 3·80 2·86 .. .. ..
10 .. .. .. .. .. 0·38 2·97 3·20 2·98 .. .. ..
11 .. .. .. .. .. 0·35 2·88 3·93 2·60 .. .. ..
12 .. .. .. .. .. 0·30 2·80 2·90 2·52 .. .. ..
13 .. .. .. .. .. 0·30 2·80 2·71 2·85 .. .. ..
14 .. .. .. .. .. 0·30 3·10 2·63 2·79 .. .. ..
15 .. .. .. .. .. 0·29 3·03 2·70 2·09 .. .. ..
16 .. .. .. .. .. 0·28 2·74 3·39 .. .. .. ..
17 .. .. .. .. .. 0·32 2·91 3·39 .. .. .. ..
18 .. .. .. .. .. 0·55 3·36 3·39 .. .. .. ..
19 .. .. .. .. .. 0·40 3·30 3·28 .. .. .. ..
20 .. .. .. .. .. 0·80 2·10 3·20 .. .. .. ..
21 .. .. .. .. .. 0·80 3·12 3·20 .. .. .. ..
22 .. .. .. .. .. 0·70 3·20 3·18 .. .. .. ..
23 .. .. .. .. .. 0·85 3·50 2·80 .. .. .. ..
24 .. .. .. .. .. 0·96 3·72 2·83 .. .. .. ..
25 .. .. .. .. .. 0·95 3·13 2·90 .. .. .. ..
26 .. .. .. .. .. 1·15 3·05 2·91 .. .. .. ..
27 .. .. .. .. .. 1·30 3·36 2·96 .. .. .. ..
28 .. .. .. .. .. 1·45 3·76 3·30 .. .. .. ..
29 .. .. .. .. .. 1·51 3·69 3·50 .. .. .. ..
30 .. .. .. .. .. 1·50 4·15 3·10 .. .. .. ..
31 .. .. .. .. .. .. 3·80 3·08 .. .. .. ..
Zero = 10·00 metres on the gauge.

Table LXIV.—Berber gauges.

="gauge br">7·45		 10 3·28
15 1·10 22 0·80 2·76
1873-1902
Date. Jan. Feb. Mar. Apr. May. Jun. Jul. Aug. Sep. Oct. Nov. Dec.
1 2·64 1·95 1·31 0·68 0·24 0·10 1·04 4·87 7·80 7·19 5·00 3·42
2 2·61 1·93 1·29 0·65 0·24 0·11 1·08 5·01 7·82 7·10 4·90 3·39
3 2·59 1·91 1·27 0·64 0·22 0·12 1·16 5·15 7·81 7·05 4·84 3·37
4 2·57 1·89 1·25 0·63 0·21 0·12 1·21 5·25 7·82 6·96 4·79 3·32
5 2·55 1·87 1·23 0·61 0·20 0·10 1·27 5·51 7·84 6·91 4·72 3·30
6 2·53 1·84 1·21 0·58 0·18 0·12 1·34 5·71 7·82 6·85 4·66 3·26
7 2·51 1·82 1·18 0·56 0·17 0·13 1·41 5·94 7·82 6·77 4·54 3·24
8 2·47 1·81 1·17 0·56 0·16 0·15 1·49 6·15 7·81 6·71 4·47 3·20
9 2·46 1·78 1·15 0·54 0·14 0·17 1·57 6·38 7·81 6·66 4·37 3·19
10 2·44 1·76 1·13 0·52 0·13 0·19 1·65 6·52 7·80 6·59 4·35 3·16
11 2·41 1·73 1·11 0·51 0·13 0·19 1·74 6·62 7·80 6·53 4·28 3·13
12 2·39 1·71 1·08 0·49 0·13 0·22 1·81 6·70 7·83 6·47 4·22 3·10
13 2·37 1·69 1·07 0·47 0·13 0·24 1·90 6·78 7·77 6·40 4·17 3·07
14 2·34 1·66 1·05 0·46 0·13 0·27 1·97 6·92 7·76 6·33 4·10 3·03
15 2·32 1·63 1·02 0·45 0·13 0·29 2·10 6·96 7·76 6·25 4·05 3·01
16 2·30 1·61 1·00 0·44 0·12 0·32 2·23 7·04 7·74 6·17 4·00 2·99
17 2·28 1·59 0·98 0·42 0·12 0·34 2·36 7·11 7·71 6·07 3·96 2·95
18 2·25 1·56 0·96 0·41 0·12 0·37 2·52 7·17 7·68 6·02 3·91 2·94
19 2·22 1·54 0·93 0·40 0·11 0·39 2·65 7·27 7·69 5·98 3·86 2·91
20 2·21 1·52 0·92 0·39 0·11 0·41 2·79 7·31 7·67 5·90 3·82 2·88
21 2·18 1·50 0·90 0·38 0·10 0·43 2·95 7·32 7·67 5·84 3·81 2·85
22 2·16 1·47 0·88 0·36 0·10 0·47 3·11 7·35 7·63 5·78 3·75 2·82
23 2·13 1·45 0·86 0·35 0·08 0·50 3·29 7·48 7·60 5·68 3·70 2·79
24 2·13 1·45 0·83 0·34 0·08 0·56 3·46 7·55 7·56 5·61 3·63 2·77
25 2·10 1·42 0·82 0·33 0·08 0·67 3·58 7·58 7·52 5·53 3·64 2·76
26 2·08 1·39 0·79 0·31 0·08 0·71 3·73 7·60 7·53 5·45 3·61 2·73
27 2·05 1·38 0·77 0·29 0·08 0·79 3·94 7·66 7·43 5·37 3·57 2·68
28 2·04 1·35 0·75 0·27 0·08 0·83 4·16 7·66 7·37 5·30 3·54 2·65
29 2·02 0·73 0·26 0·08 0·98 4·36 7·69 7·31 5·22 3·49 2·62
30 1·99 0·71 0·24 0·08 0·97 4·58 7·74 7·25 5·15 3·42 2·60
31 1·96 0·69 0·09 4·73 7·78 5·07 2·58
Zero is R. L. 85·00 metres.

Table LXV. (continued).—AssuÂn Gauges.

ss="date">10		 0·24 21 -0·57 -0·61 2·76 7·73 8·86 10 4·38
15 0·17 22 -0·57 -0·61 2·98 7·89 8·81 15 4·20
20 0·08 23 -0·59 -0·59 3·33 7·96 8·86 20 4·09
25 -0·03 24 -0·61 -0·50 3·48 8·02 8·92 25 3·93
30 -0·05 25 -0·64 -0·32 3·82 8·07 8·99 30 3·77
Mean. 0·17 26 -0·64 -0·05 4·22 8·09 8·97 Mean. 4·23
April. 27 -0·64 0·19 4·45 7·91 8·92
1 -0·10 28 -0·66 0·40 4·63 7·69 9·01
5 -0·12 29 -0·68 0·58 4·78 7·57 9·08
10 -0·19 30 -0·68 0·64 4·96 7·53 9·13
15 -0·26 31 -0·68 .. 5·21 7·55 ..
20 -0·26 Mean. -0·56 -0·47 2·27 6·85 8·63
25 -0·37
30 -0·41
Mean. -0·25
Zero is R. L. 85·00 metres.
1901
Date. Month. Date. May. June. July. Au-
gust.		 Sept. Date. Month.
January. October.
1 1·97 1 -0·37 -0·08 0·37 3·89 7·42 1 6·56
5 1·93 2 -0·39 -0·08 0·49 3·95 7·38 5 6·09
10 1·79 3 -0·41 -0·10 0·67 4·02 7·44 10 5·59
15 1·66 4 -0·44 -0·10 0·82 4·13 7·62 15 5·06
20 1·57 5 -0·44 -0·10 0·96 4·32 7·76 20 4·67
25 1·48 6 -0·46 -0·12 1·05 4·67 7·82 25 4·31
30 1·25 7 -0·46 -0·12 1·09 5·28 7·82 30 4·15
Mean. 1·66 8 -0·46 -0·14 1·15 5·82 7·76 Mean. 5·20
February. 9 -0·46 -0·19 1·23 6·09 7·73 Nov.
1 1·21 10 -0·46 -0·21 1·39 6·23 7·71 1 3·95
5 1·07 11 -0·44 -0·21 1·57 4·11 7·02 Novemb.
1 0·85 10 -0·57 -0·01 1·55 4·09 7·62 1 5·46
5 0·82 11 -0·59 0·01 1·57 4·13 7·68 5 5·15
10 0·73 12 -0·59 0·01 1·59 4·34 7·75 10 4·67
15 0·51 13 -0·59 0·06 1·59 4·90 7·75 15 4·25
20 0·40 14 -0·64 0·08 1·66 5·44 7·73 20 4·06
25 0·28 15 -0·55 0·13 1·68 5·73 7·66 25 3·52
28 0·06 16 -0·55 0·20 1·72 5·91 7·64 30 3·21
Mean. 0·52 17 -0·55 0·20 1·75 6·04 7·62 Mean. 4·33
March. 18 -0·57 0·74 1·82 6·13 7·58 Decemb.
1 0·06 19 -0·57 0·94 1·91 6·34 7·55 1 3·16
5 0·10 20 -0·55 1·10 2·02 6·65 7·48 5 3·03
10 0·10 21 -0·48 1·12 2·18 7·01 7·42 10 2·71
15 -0·03 22 -0·28 1·23 2·33 7·21 7·35 15 2·51
20 -0·05 23 -0·28 1·34 2·44 7·39 7·35 20 2·33
25 -0·26 24 -0·21 1·14 2·47 7·49 7·28 25 2·31
30 -0·28 25 -0·35 1·12 2·56 7·66 7·33 30 2·15
Mean. -0·05 26 -0·35 1·27 2·69 7·82 7·35 Mean. 2·60
April. 27 -0·37 1·30 2·85 7·93 7·35
1 -0·28 28 -0·37 0·92 2·96 7·84 7·33
5 -0·23 29 -0·34 0·92 3·03 7·66 7·35
10 -0·39 30 -0·28 0·98 3·07 7·53 7·33
15 -0·48 31 -0·14 .. 3·12 7·46 ..
20 -0·39 Mean. -0·48 0·47 1·97 5·68 7·50
25 -0·59
30 -0·62
Mean. -0·43
Zero is R. L. 85·00 metres.
1904
Date. Month. Date. May. June. July. Au-
gust.		 Sept.
R. L. of Zero 85·00 metres.
Year. Date. Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec.
1902 1 .. .. .. .. .. .. .. .. .. .. 12·80 17·77
5 .. .. .. .. .. .. .. .. .. .. 13·72 18·16
10 .. .. .. .. .. .. .. .. .. .. 14·91 18·59
15 .. .. .. .. .. .. .. .. .. .. 15·73 19·02
20 .. .. .. .. .. .. .. .. .. 9·90 16·58 19·39
25 .. .. .. .. .. .. .. .. .. 10·98 17·18 19·77
30 .. .. .. .. .. .. .. .. .. 12·50 17·67 20·25
Mean .. .. .. .. .. .. .. .. .. .. 15·51 19·00
1903 1 20·30 21·00 21·05 20·67 19·76 17·63 .. .. .. .. .. 10·56
5 20·38 21·13 21·09 20·55 19·63 16·85 .. .. .. .. .. 10·53
10 20·41 21·06 21·00 20·34 19·39 15·69 .. .. .. .. 10·63 12·10
15 20·61 21·03 20·92 20·19 19·18 14·41 .. .. .. .. 10·53 13·33
20 20·67 21·06 20·79 19·99 18·98 12·42 .. .. .. .. 6·90 14·49
25 20·86 21·00 20·75 19·89 18·48 9·43 .. .. .. .. 10·59 15·18
30 20·96 21·03 20·68 19·72 17·97 7·07 .. .. .. .. 10·57 16·14
Mean 20·60 21·04 20·90 20·19 19·05 13·47 .. .. .. .. .. 13·19
1904 1 16·29 19·18 20·44 20·91 20·94 19·66 .. .. .. .. .. ..
5 16·80 19·42 20·72 21·00 20·99 19·06 .. .. .. .. .. ..
10 17·37 19·70 21·01 21·15 21·09 17·97 .. .. .. .. .. ..
15 17·81 20·00 20·96 21·25 20·91 16·22 .. .. .. .. .. ..
20 18·26 20·28 21·01 21·16 20·73 13·84 .. .. .. .. .. ..
25 18·66 20·37 20·94 21·06 20·33 10·26 .. .. .. .. .. ..
30 19·13 20·41 20·90 20·96 19·83 6·56 .. .. .. .. .. ..
Mean 17·76 19·91 20·85 21·07 20·69 14·80 .. .. .. .. .. ..
Zero is R. L. 85·00 metres.

Table LXVII.—Cairo gauges. (Roda island).

Mean of 20 years 1873-1892.

Year. Date. Jan. Feb. Mar. Apr. May. Jun. Jul. Aug. Sep. Oct. Nov. Dec.
5 2·8 2·2 1·8 1·5 1·1 0·9 1·1 4·1 6·5 6·9 5·6 3·6
10 2·7 2·2 1·8 1·4 1·1 0·9 1·3 4·9 6·7 6·9 5·1 3·4
15 2·6 2·1 1·7 1·3 1·1 0·9 1·5 5·7 6·8 6·8 4·7 3·3
20 2·5 2·0 1·6 1·3 1·1 0·9 1·8 5·9 6·9 6·8 4·3 3·2
25 2·4 1·9 1·6 1·2 1·0 1·0 2·2 6·2 7·0 6·7 4·0 3·0
End. 2·3 1·9 1·5 1·2 1·0 1·1 2·9 6·4 7·1 6·2 3·8 2·9
1877 5 2·7 2·2 1·5 1·3 1·1 0·7 1·2 3·6 5·2 5·2 3·9 2·9
10 2·7 2·1 1·4 1·3 1·0 0·7 1·2 4·0 5·3 5·0 3·6 2·7
15 2·6 1·9 1·4 1·2 1·0 0·7 1·4 4·7 5·2 4·9 3·7 2·6
20 2·6 1·8 1·3 1·1 1·0 0·8 1·6 4·6 5·2 4·6 3·7 2·5
25 2·5 1·7 1·4 1·1 1·0 1·0 2·4 5·3 5·1 4·4 3·5 2·4
End. 2·3 1·7 1·4 1·0 1·9 1·3 2·8 5·3 5·3 4·2 3·1 2·3
Mean. 2·6 1·9 1·4 1·2 1·0 0·9 1·8 4·6 5·2 4·7 3·6 2·6
1878 5 2·2 1·6 1·0 0·6 0·3 0·0 -0·2 4·1 6·5 8·4 7·5 4·9
10 2·1 1·5 0·9 0·6 0·2 0·0 0·4 4·9 6·8 8·7 7·4 4·7
15 2·1 1·3 0·9 0·5 0·2 0·0 0·8 5·4 7·2 8·4 6·9 4·5
20 1·9 1·2 1·0 0·5 0·2 -0·2 1·0 6·0 7·6 8·1 6·2 4·4
25 1·8 1·1 0·8 0·4 0·1 -0·2 1·4 6·3 7·9 7·9 5·5 4·2
End. 1·7 1·1 0·8 0·3 0·0 -0·2 2·6 6·6 8·2 7·7 5·5 4·0
Mean. 1·9 1·3 0·9 0·5 0·2 -0·1 1·0 5·5 7·4 8·2 6·5 4·4
1879 5 3·7 3·2 2·7 2·5 2·2 2·0 2·1 5·1 7·1 7·9 5·9 4·4
10 3·6 3·0 2·7 2·5 2·2 2·1 2·1 5·9 7·0 7·5 5·4 4·0
15 3·5 2·9 2·6 2·5 2·2 2·3 2·6 6·5 7·2 7·6 5·0 3·8
20 3·4 2·9 2·6 2·4 2·1 2·2 3·5 6·9 7·7 7·4 4·7 3·7
25 3·3 2·8 2·5 2·3 2·1 2·2 3·9 7·0 8·0 7·3 4·5 3·5
End. 3·2 2·8 2·5 2·3 2·0 2·1 4·9 7·1 8·1 6·6 4·3 3·5
Mean. 3·5 2·9 2·6 2·4 2·1 2·1 3·2 6·4 7·5 7·4 5·0 3·8
Referred to zero as R. L. 12·25.

Table LXVII. (continued).—Cairo gauges (Roda island).

1902
Date. Month. Date. May. June. July. August. Sept. Date. Month.
January. October.
1 2·78 1 2·08 1·73 1·79 3·66 4·87 1 5·68
5 2·74 2 2·07 1·75 1·78 3·61 4·92 5 5·60
10 2·68 3 2·02 1·75 1·76 3·64 5·01 10 5·51
15 2·49 4 2·00 1·78 1·75 3·64 5·14 15 5·57
20 2·25 5 2·00 1·80 1·75 3·66 5·23 20 5·66
25 2·16 6 2·00 1·80 1·76 3·66 5·28 25 5·50
30 2·27 7 2·00 1·80 1·79 3·68 5·30 30 5·22
Mean. 2·45 8 1·98 1·82 1·88 3·72 5·30 Mean. 5·53
February. 9 1·99 1·83 1·98 3·77 5·35 Nov.
1 2·27 10 1·99 1·82 2·07 3·80 5·41 1 5·11
5 2·25 11 1·98 1·80 2·16 3·81 5·49 5 4·96
10 2·20 12 1·98 1·80 2·25 3·84 5·54 10 4·65
15 2·20 13 1·96 1·81 2·32 3·86 5·55 15 4·44
20 2·27 14 1·96 1·80 2·38 3·88 5·53 20 4·38
25 2·22 15 1·94 1·80 2·41 3·90 5·52 25 3·95
28 2·37 16 1·94 1·79 2·47 3·93 5·53 30 3·91
Mean. 2·25 17 1·91 1·78 2·50 3·95 5·55 Mean. 4·49
March. 18 1·86 1·76 2·52 3·97 5·56 Dec.
1 2·37 19 1·86 1·71 2·56 4·02 5·58 1 3·93
5 2·32 20 1·86 1·68 2·58 4·13 5·64 5 3·70
10 2·30 21 1·86 1·66 2·64 4·26 5·67 10 3·29
15 2·34 22 1·84 1·64 2·70 4·33 5·74 15 3·05
20 2·30 23 1·82 1·66 2·82 4·40 5·77 20 3·05
25 2·29 24 1·82 1·69 2·94 4·47 5·77 25 2·95
30 2·29 25 1·80 1·71 3·05 4·51 5·77 30 2·78
Mean. 2·32 26 1·80 1·76 3·13 4·58 5·71 Mean. 3·25
April. 27 1·78 1·78 3·23 4·65 5·70
1 2·29 28 1·78 1·80 3·35 4·72 5·69
5 2·27 29 1·77 1·80 3·50 4·79 5·69
10 2·09 30 1·75 1·80 3·54 4·83 5·68
15 2·12 31 1·74 .. 3·57 4·85 ..
20 2·12 Mean. 1·92 1·76 2·45 4·07 5·44
25 2·07
30 2·08
Mean. 2·15
Zero is R. L. 12·25 metres.
1903
Date. Month. Date. May. June. July. August. Sept. Date. Month.
January. October.
1 2·78 1 2·03 1·87 3·25 3·73 6·18 1 6·19
5 2·69 2 2·02 1·93 3·48 3·76 6·11 5 6·34
10 2·64 3 2·00 1·96 3·55 3·76 6·11 10 6·63
15 2·67 4 2·00 1·98 3·54 3·78 6·09 15 6·61
20 2·51 5 1·96 1·98 3·59 3·80 6·06 20 6·72
25 2·43 6 1·93 1·98 3·57 3·84 6·04 25 6·90
30 2·36 7 1·89 1·98 3·54 3·89 6·02 30 5·91
Mean. 2·56 8 1·84 1·99 3·57 3·89 6·05 Mean. 6·47
February. 9 1·81 2·00 3·54 3·91 6·07 Nov.
1 10 1·79 2·03 3·55 3·92 6·14 1 6·18
5 2·47 11 1·77 2·06 3·57 3·94 6·18 5 6·15
10 2·43 12 1·79 2·06 3·57 4·02 6·21 10 5·90
15 2·38 13 1·79 2·07 3·57 4·06 6·25 15 5·23
20 2·38 14 1·77 2·08 3·59 4·19 5·27 20 4·67
25 2·33 15 1·75 2·10 3·60 4·24 6·29 25 4·50
28 2·30 16 1·79 2·16 3·62 4·33 6·33 30 4·26
Mean. 2·38 17 1·79 2·20 3·64 4·40 6·36 Mean. 5·27
March. 18 .. 2·20 3·66 4·49 6·39 Dec.
1 2·29 19 .. 2·25 3·64 4·69 6·41 1 4·22
5 2·24 20 1·75 2·32 3·68 4·89 6·41 5 4·08
10 2·36 21 1·75 2·36 3·64 5·03 6·39 10 3·99
15 2·32 22 1·76 2·39 3·66 5·15 6·36 15 3·50
20 2·33 23 1·77 3·66 6·33 20 3·33
25 2·41 24 1·75 2·45 3·66 5·40 6·28 25 3·01
30 2·42 25 1·78 2·48 3·69 5·55 6·25 30 2·86
Mean. 2·34 26 .. 2·50 3·68 5·72 6·20 Mean. 3·57
April. 27 1·80 2·54 3·69 5·84 6·15
1 2·40 28 1·83 2·61 3·69 5·93 6·11
5 2·38 29 1·85 2·82 3·66 6·05 6·10
10 2·25 30 1·83 3·01 3·70 6·15 6·15
15 2·22 31 1·83 .. 3·72 6·18 ..
20 2·40 Mean. 1·84 2·25 3·58 4·61 6·22
25 2·20
30 2·04
Mean. 2·27
Zero is R. L. 12·25 metres.
1904
Date. Month. Date. May. June. July. August. Sept. Date. Month.
January. October.
1 2·82 1 2·58 2·60 3·59 3·88 5·68 1 ..
5 2·69 2 2·58 2·65 3·59 3·93 5·66 5 ..
10 2·12 3 2·56 3·05 3·57 4·04 5·64 10 ..
15 2·54 4 2·56 2·90 3·56 4·15 5·62 15 ..
20 2·47 5 2·57 2·75 3·59 4·26 5·65 20 ..
25 2·41 6 2·57 2·80 3·59 4·38 5·65 25 ..
30 2·44 7 2·54 2·84 3·59 4·47 5·66 30 ..
Mean. 2·50 8 2·56 2·86 3·57 4·56 5·67 Mean. ..
February. 9 2·54 2·88 3·57 4·65 5·69 Novem.
1 2·50 10 2·54 2·92 3·54 4·76 5·75 1 ..
5 2·62 11 2·52 2·97 3·54 4·84 5·79 5 ..
10 2·74 12 2·52 3·01 3·54 5·14 5·83 10 ..
15 2·70 13 2·54 — 3·55 5·40 5·84 15 ..
20 2·66 14 2·56 3·08 3·54 5·62 5·82 20 ..
25 2·83 15 2·54 3·09 3·57 5·80 5·80 25 ..
28 2·83 16 2·52 3·07 3·54 5·94 5·83 30 ..
Mean. 2·70 17 2·50 3·10 3·54 5·95 5·85 Mean. ..
March. 18 2·54 3·15 3·54 5·97 5·89 Decem.
1 2·73 19 2·54 3·23 3·54 5·97 5·93 1 ..
5 2·79 20 2·52 3·35 3·52 5·93 5·92 5 ..
10 2·75 21 2·52 3·50 3·52 5·91 5·92 10 ..
15 2·70 22 2·52 3·57 3·54 5·86 5·89 15 ..
20 2·70 23 2·52 3·59 3·54 5·82 5·86 20 ..
25 2·66 24 2·51 3·60 3·54 5·77 5·80 25 ..
30 2·60 25 2·52 3·55 3·57 5·75 .. 30 ..
Mean. 2·70 26 2·56 3·55 3·57 5·74 .. Mean. ..
April. 27 2·57 3·57 3·57 5·73 ..
1 2·61 28 2·58 3·57 3·57 5·70 ..
5 2·61 29 2·56 3·58 3·59 5·69 ..
10 2·56 30 2·54 3·58 3·73 5·68 ..
15 2·60 31 2·56 .. 3·88 5·68 ..
20 2·38 Mean. 2·55 3·12 3·14 5·15 ..
25 2·11
30 2·52
Mean. 2·48
Zero is R. L. 12·25 metres.

Table LXVIII.—Gauges downstream of the Rosetta Weir.

Year. Date. Jan. Feb. Mar. Apr. May. Jun. Jul. Aug. Sep. Oct. Nov. Dec.
1902 1 3·57 2·12 1·00 0·00 -0·50 -0·50 0·00 1·10 4·30 5·36 4·54 4·10
5 3·53 1·95 0·87 -0·48 -0·50 -0·50 0·00 1·94 4·83 5·24 4·27 3·63
10 3·40 1·77 0·67 -0·45 -0·50 -0·12 0·05 2·00 5·04 5·08 3·85 3·90
15 3·12 1·54 0·31 -0·48 -0·50 0·00 0·03 2·26 5·16 5·12 3·50 3·95
20 2·75 1·37 0·60 -0·47 -0·50 -0·02 0·08 2·87 5·28 5·32 3·38 3·99
25 2·58 1·15 0·33 -0·50 -0·50 0·00 0·16 3·77 5·40 5·08 3·10 3·84
30 2·24 0·93 -0·29 -0·50 -0·50 0·00 0·94 4·22 5·36 4·71 3·98 3·58
Mean 3·03 1·55 0·36 -0·41 -0·50 -0·16 0·18 2·60 5·05 5·11 3·80 3·89
1903 1 3·52 2·56 1·44 -0·35 -0·40 -0·46 -0·43 1·92 6·12 6·00 6·07 3·20
5 3·48 2·22 1·25 -0·38 -0·42 -0·46 -0·30 2·75 5·98 6·11 6·00 2·90
10 3·39 1·94 0·67 -0·38 -0·44 -0·46 -0·20 3·45 6·00 6·33 5·86 3·18
15 3·44 1·88 0·50 -0·40 -0·45 -0·46 -0·12 4·05 6·12 6·33 5·24 3·11
20 3·24 1·79 0·38 -0·40 -0·46 -0·46 -0·76 4·26 6·22 6·43 4·48 3·00
25 3·03 1·62 0·01 -0·40 -0·46 -0·46 -0·70 5·24 6·07 6·59 3·95 3·09
30 2·80 1·50 -0·32 -0·40 -0·46 -0·46 -1·50 6·03 5·95 6·26 3·42 3·00
Mean 3·27 1·93 0·56 -0·39 -0·44 -0·46 -0·27 3·96 6·07 6·29 5·00 3·07
1904 1 2·98 2·56 2·28 0·00 -0·33 -0·35 -0·24 1·50 5·19 .. .. ..
5 2·80 3·06 1·25 -0·20 -0·32 -0·35 -0·24 2·80 5·11 .. .. ..
10 2·71 2·90 0·50 -0·40 -0·32 -0·31 -0·24 3·96 5·23 .. .. ..
15 2·66 2·75 0·00 -0·25 -0·32 -0·32 -0·24 5·45 5·31 .. .. ..
20 2·57 2·57 0·00 -0·40 -0·32 -0·32 -0·24 5·63 5·45 .. .. ..
25 2·54 2·38 0·00 -0·32 -0·32 -0·10 -0·24 5·30 .. .. .. ..
30 2·44 2·28 0·00 -0·34 -0·35 -0·24 0·20 5·19 .. .. .. ..
Mean 2·67 2·50 0·58 -0·27 -0·33 -0·28 0·23 4·26 .. .. .. ..
Zero is R. L. 10·00 metres.

Table LXIX.—Gauges downstream of the Damietta Weir.

Year. Date. Jan. Feb. Mar. Apr. May. Jun. Jul. Aug. Sep. Oct. Nov. Dec.
1902 1 0·44 0·50 0·75 0·14 -0·01 0·27 -0·04 1·18 4·34 5·26 4·54 2·62
5 0·44 0·55 0·75 0·06 -0·01 0·27 -0·04 1·20 4·80 5·14 4·29 2·02
10 0·41 0·65 0·75 0·00 -0·01 -0·01 -0·04 2·23 5·00 5·02 4·01 1·25
15 0·36 0·75 0·75 0·00 -0·01 -0·03 0·21 2·73 5·12 5·06 3·80 0·85
20 0·34 0·50 0·27 -0·01 0·07 -0·04 0·35 3·40 5·20 5·26 3·75 0·60
25 0·32 0·75 0·17 -0·01 0·10 -0·04 0·38 3·98 5·30 5·02 3·52 0·45
30 0·50 0·75 0·14 -0·01 0·21 -0·04 1·20 4·26 5·26 4·66 2·77 0·42
Mean. 0·40 0·64 0·51 0·02 0·05 0·05 0·29 2·71 5·00 5·06 3·81 1·17
1903 1 0·42 0·30 0·29 0·52 -0·12 -0·15 -0·13 1·00 6·06 6·09 6·15 4·77
5 0·35 0·30 0·77 0·14 -0·12 -0·15 0·67 0·80 6·08 6·22 6·09 4·76
10 0·33 0·30 0·95 0·00 -0·14 -0·15 0·33 0·50 6·10 6·48 5·95 4·00
15 0·33 0·30 0·68 -0·02 -0·14 -0·15 1·20 2·30 6·19 6·46 5·46 3·54
20 0·33 0·30 0·63 -0·08 -0·15 -0·15 1·00 4·32 6·30 6·57 4·95 3·44
25 0·33 0·30 0·60 -0·10 -0·15 -0·15 1·20 5·29 6·14 6·75 4·87 3·68
30 0·30 0·30 0·67 -0·12 -0·15 -0·15 1·10 5·98 6·06 6·35 4·85 3·62
Mean. 0·34 0·30 0·66 0·05 -0·14 -0·15 0·77 2·88 6·13 6·41 5·46 3·97
1904 1 3·60 2·94 0·72 1·55 0·11 -0·05 2·02 3·08 5·20 .. .. ..
5 3·51 1·88 2·53 1·37 0·41 -0·08 1·75 3·64 5·11 .. .. ..
10 3·46 0·77 3·06 1·00 0·46 -0·09 1·16 4·22 5·23 .. .. ..
15 3·41 0·75 2·65 0·45 0·24 -0·09 0·50 5·54 5·31 .. .. ..
20 3·35 0·68 2·38 1·52 0·02 -0·09 -0·03 5·69 5·47 .. .. ..
25 3·32 0·66 1·96 1·16 0·35 1·06 -0·05 5·32 .. .. .. ..
30 3·24 0·72 1·82 0·15 -0·02 1·97 2·00 5·20 .. .. .. ..
Mean. 3·41 1·20 2·16 1·03 0·22 0·38 1·05 4·67 .. .. .. ..
Zero is R. L. 10·00 metres.

Appendix M.

Table LXX.—AssuÂn gauge. Pics referred to metres with Zero at R.L. 85·00 metres.

class="br fsize80">metres. 		metres. metres. metres. metres. metres. metres. metres. metres.
0 4·56 5·10 5·64 6·18 6·72 7·26 7·80 8·34 8·88 0
1 4·58 5·12 5·66 6·20 6·74 7·28 7·82 8·36 8·90 1
2 4·60 5·14 5·68 6·22 6·76 7·30 7·84 8·38 8·92 2
3 4·63 5·17 5·71 6·25 6·79 7·33 7·87 8·41 8·94 3
4 4·65 5·19 5·73 6·27 6·81 7·35 7·8 8·43 8·96 4
5 4·67 5·21 5·75 6·29 6·83 7·37 7·91 8·45 8·98 5
6 4·70 5·24 5·77 6·31 6·85 7·39 7·93 8·48 9·00 6
7 4·72 5·26 5·80 6·34 6·88 7·42 7·96 8·50 9·03 7
8 4·74 5·28 5·82 6·36 6·90 7·44 7·98 8·52 9·06 8
9 4·76 5·30 5·84 6·38 6·92 7·46 8·00 8·54 9·08 9
10 4·78 5·32 5·86 6·41 6·95 7·48 8·02 8·57 9·10 10
11 4·81 5·35 5·89 6·43 6·97 7·50 8·05 8·59 9·13 11
12 4·83 5·37 5·91 6·45 7·00 7·53 8·07 8·61 9·15 12
13 4·85 5·39 5·93 6·47 7·02 7·55 8·09 8·63 9·17 13
14 4·88 5·42 5·96 6·50 7·04 7·58 4·11 8·65 9·19 14
15 4·90 5·44 5·98 6·52 7·06 7·60 8·14 8·68 9·22 15
16 4·92 5·46 6·00 6·54 7·08 7·62 8·16 8·70 9·24 16
17 4·94 5·48 6·02 6·56 7·10 7·64 8·18 8·72 9·26 17
18 4·96 5·50 6·04 6·58 7·13 7·66 8·20 8·74 9·29 18
19 4·98 5·53 6·07 6·60 7·15 7·69 8·23 8·77 9·31 19
20 5·00 5·55 6·09 6·63 7·17 7·71 8·25 8·79 9·33 20
21 5·03 5·57 6·11 6·65 7·19 7·73 8·27 8·81 9·35 21
Kirats. pics and kirats converted into metres, referred to zero at R. L. 85·00 metres, or 1 pic 14 Kirats.
Pic
8.		 Pic
9.		 Pic
10.		 Pic
11.		 Pic
12.		 Pic
13.		 Pic
14.		 Pic
15.		 Pic
16.		 Pic
17.		 Pic
18.		 Pic
19.		 Pic
20.		 Pic
21.		 Pic
22.		 Pic
23.		 Pic
24.		 Pic
25.		 Pic
26.
metres. metres. metres. metres. metres. metres. metres. metres. metres. metres. metres. metres. metres. metres. metres. metres. metres. metres. metres.
0 ·89 1·48 2·03 2·62 3·16 3·69 4·18 4·66 5·15 5·39 5·64 5·91 6·18 6·46 6·74 7·26 7·83 8·35 8·88 0
1 ·91 1·50 2·05 2·65 3·18 3·71 4·20 4·68 5·16 5·40 5·65 5·92 6·19 6·47 6·76 7·28 7·85 8·37 8·91 1
2 ·93 1·52 2·08 2·67 3·20 3·73 4·22 4·70 5·17 5·41 5·66 5·93 6·20 6·48 6·78 7·31 7·87 8·39 8·93 2
3 ·95 1·54 2·10 2·70 3·22 3·75 4·24 4·72 5·18 5·42 5·67 5·94 6·21 6·49 6·80 7·35 7·89 8·41 8·95 3
4 ·97 1·56 2·13 2·72 3·24 3·77 4·26 4·74 5·19 5·43 5·68 5·96 6·23 6·50 6·83 7·37 7·91 8·43 8·97 4
5 1·00 1·59 2·15 2·74 3·27 3·79 4·28 4·76 5·20 5·44 5·69 5·97 6·24 6·51 6·85 7·39 7·93 8·46 9·00 5
6 1·02 1·61 2·18 2·76 3·29 3·82 4·30 4·78 5·21 5·45 5·70 5·98 6·25 6·52 6·87 7·41 7·96 8·48 9·02 6
7 1·05 1·63 2·21 2·78 3·31 3·84 4·32 4·80 5·22 5·46 5·71 5·99 6·26 6·53 6·89 7·43 7·98 8·50 9·04 7
8 1·07 1·65 2·24 2·80 3·34 3·86 4·34 4·82 5·23 5·47 5·72 6·00 6·27 6·54 6·91 7·46 8·00 8·52 9·06 8
9 1·09 1·67 2·26 2·82 3·37 3·88 4·36 4·84 5·24 5·48 5·74 6·01 6·28 6·56 6·93 7·48 8·02 8·54 9·09 9
10 1·11 1·69 2·29 2·84 3·39 3·90 4·38 4·86 5·25 5·49 5·75 6·02 6·29 6·57 6·96 7·50 8·04 8·56 9·11 10
11 1·13 1·72 2·31 2·86 3·41 3·92 4·40 4·88 5·26 5·50 5·76 6·03 6·31 6·58 6·98 7·52 8·06 8·59 9·13 11
12 1·15 1·74 2·33 2·88 3·43 3·94 4·42 4·90 5·27 5·51 5·77 6·04 6·32 6·59 7·00 7·54 8·09 8·61 9·15 12
13 1·17 1·76 2·35 2·90 3·46 3·96 4·44 4·92 5·28 5·52 5·78 6·05 6·33 6·61 7·02 7·56 8·11 8·63 9·18 13
14 1·20 1·78 2·37 2·93 3·48 3·98 4·46 4·94 5·29 5·53 5·79 6·07 6·34 6·62 7·04 7·59 8·13 8·65 9·20 14
15 1·22 1·81 2·39 2·95 3·50 4·00 4·48 4·96 5·30 5·54 5·80 6·08 6·35 6·63 7·06 7·61 8·15 8·68 9·22 15
16 1·25 1·83 2·42 2·97 3·52 4·02 4·50 4·98 5·31 5·55 5·81 6·09 6·36 6·64 7·09 7·63 8·17 8·70 9·24 16
17 1·28 1·86 2·45 3·00 3·54 4·04 4·52 5·00 5·32 5·57 5·83 6·10 6·37 6·65 7·11 7·66 8·20 8·72 9·26 17
18 1·31 1·88 2·48 3·02 3·56 4·06 4·54 5·02 5·33 5·58 5·84 6·12 6·39 6·66 7·13 7·68 8·22 8·74 9·29 18
19 1·34 1·91 2·50 3·04 3·58 4·08 4·56 5·04 5·34 5·59 5·85 6·13 6·40 6·68 7·16 7·71 8·24 8·76 9·31 19
20 1·37 1·94 2·52 3·06 3·60 4·10 4·58 5·06 5·35 5·60 5·87 6·14 6·41 6·69 7·18 7·73 8·26 8·79 9·33 20
21 1·40 1·96 2·55 3·09 3·62 4·12 4·60 5·09 5·36 5·61 5·88 6·15 6·42 6·70 7·20 7·75 8·29 8·81 9·35 21
22 1·42 1·98 2·57 3·11 3·64 4·14 4·62 5·11 5·37 5·62 5·89 6·16 6·43 6·71 7·22 7·78 8·31 8·83 9·37 22
23 1·45 2·00 2·60 3·13 3·66 4·16 4·64 5·13 5·38 5·63 5·90 6·17 6·44 6·73 7·24 7·80 8·33 8·85 9·40 23

Appendix N.

Table LXXII.—Table for Converting Cubic Metres per Day into Cubic Metres per Second.

Cubic metres
per day.		 Cubic metres
per second.
10,000 0·1157
20,000 0·2315
30,000 0·3472
40,000 0·4630
50,000 0·5787
60,000 0·6944
70,000 0·8102
80,000 0·9259
90,000 1·0417
100,000 1·1574
150,000 1·7361
200,000 2·3148
250,000 2·8935
300,000 3·4722
350,000 4·0509
400,000 4·6296
450,000 5·2083
500,000 5·7870
550,000 6·3657
600,000 6·9444
650,000 7·5231
700,000 8·1018
750,000 8·6805
800,000 9·2593
850,000 9·8380
900,000 10·4167
950,000 10·9954
1,000,000 11·5741
1,250,000 14·4676
1,500,000 17·3611
1,750,000 20·2546
2,000,000 23·1481
2,250,000 26·0417
2,500,000 28·9352
2,750,000 31·8287
3,000,000 34·7222
3,250,000 37·6157
3,500,000 40·5092
3,750,000 43·4028
4,000,000 46·2963
4,250,000 49·1898
4,500,000 52·0833
4,750,000 54·9768
5,000,000 57·8704
5,250,000 60·7639
5,500,000 63·6574
5,750,100 66·5509
6,000,000 69·4444
6,250,000 72·3380
6,500,000 75·2315
6,750,000 78·1250
7,000,000 81·0185
7,250,000 83·9120
7,500,000 86·8055
7,750,000 89·6991
8,000,000 92·5926
8,250,000 95·4861
8,500,000 98·3796
8,750,000 101·2731
9,000,000 104·1667
9,250,000 107·0602
9,500,000 109·9537
9,750,000 112·8472
10,000,000 115·7407
Rough Working
Approximations.
Cubic metres
per day.		 Cubic metres
per second.
125,000 1·5
250,000 3
500,000 6
750,000 9
1,000,000 12
2,000,000 24
3,000,000 36
4,000,000 48
5,000,000 60
6,000,000 72
7,000,000 84
8,000,000 96
9,000,000 108
10,000,000 120

Table LXXIII.—Table for converting Cubic Metres per Second into Cubic Metres per Day.

Cubic metres
per second.		 Cubic metres
per day.
1 86,400
2 172,800
3 259,200
4 345,600
5 432,000
6 518,400
7 604,800
8 691,200
9 777,600
10 864,000
11 950,400
12 1,036,800
13 1,123,200
14 1,209,600
15 1,296,000
16 1,382,400
17 1,468,800
18 1,555,200
19 1,641,600
20 1,728,000
21 1,814,400
22 1,900,800
23 1,987,200
24 2,073,500
25 2,160,000
26 2,246,400
27 2,332,800
28 2,419,200
29 2,505,600
30 2,592,000
31 2,678,400
32 2,764,800
33 2,851,200
34 2,937,600
35 3,024,000
36 3,110,400
37 3,196,800
38 3,283,200
39 3,369,600
40 3,456,000
41 3,542,400
42 3,628,800
43 3,715,200
44 3,801,600
45 3,888,000
46 3,974,400
47 4,060,800
48 4,147,200
49 4,233,600
50 4,320,000
51 4,406,400
52 4,492,800
53 4,579,200
54 4,665,600
55 4,752,000
56 4,838,400
57 4,924,800
58 5,011,200
59 5,097,600
60 5,184,000
61 5,270,400
62 5,356,800
63 5,443,200
64 5,529,600
65 5,616,000
66 5,702,400
67 5,788,800
68 5,875,200
69 5,961,600
70 6,048,000
71 6,134,400
72 6,220,800
73 6,307,200
74 6,393,600
75 6,480,000
76 6,566,400
77 6,652,800
78 6,739,200
79 6,825,600
80 6,912,000
81 6,998,400
82 7,084,800
83 7,171,200
84 7,257,600
85 7,344,000
86 7,430,400
87 7,516,800
88 7,603,200
89 7,689,600
90 7,776,000
91 7,862,400
92 7,948,800
93 8,035,200
94 8,121,600
95 8,208,000
96 8,294,400
97 8,380,800
98 8,467,200
99 8,553,600
100 8,640,000

Appendix P.

Table LXXIV.—Bombay rainfall compared with the AssuÂn gauges.

Year. Bombay Rainfall
in millimetres		 AssuÂn Gauge
in metres
June. July. Au-
gust.		 Sept. Total
4
Months.		 Variation
from
normal.		 Au-
gust.		 Sept. Variation
from normal.
Aug. Sept.
1874 474 1046 282 279 2081 +267 7·96 8·59 +1·20 +0·91
1875 618 389 310 806 2123 +309 7·32 8·06 +0·56 +0·38
1876 328 602 220 119 1269 -545 7·19 8·38 +0·43 +0·70
1877 904 281 216 226 1627 -187 5·67 6·11 -1·09 -1·57
1878 505 1227 518 417 2667 +853 6·84 8·62 +0·08 +0·94
1879 420 285 567 142 1414 -400 7·39 8·13 +0·63 +0·45
1880 544 465 104 579 1692 -122 6·96 7·43 +0·20 -0·25
1881 387 747 483 116 1733 -81 5·96 8·07 -0·80 +0·39
1882 699 683 85 255 1722 -92 6·00 7·33 -0·76 -0·35
1883 346 1011 318 312 1987 +173 7·20 7·91 +0·44 +0·23
1884 335 655 386 432 1808 -6 6·06 7·04 -0·70 -0·64
1885 130 554 645 305 1634 -180 7·39 7·61 +0·63 -0·07
1886 1103 907 272 166 2448 +634 6·38 7·65 -0·38 -0·03
1887 610 785 445 463 2303 +489 7·95 8·62 +1·19 +0·94
1888 401 573 289 124 1387 -427 5·99 6·61 -0·77 -1·07
1889 505 775 260 63 1603 -211 6·88 7·91 +0·12 +0·23
1890 607 554 275 168 1604 -210 7·47 8·14 +0·71 +0·46
1891 348 830 170 575 1923 +109 6·79 7·83 +0·03 +0·15
1892 338 600 838 569 2345 +531 7·14 8·67 +0·38 +0·99
1893 544 399 343 197 1483 -331 6·97 7·43 +0·21 -0·25
1894 426 662 218 305 1611 -203 7·27 8·37 +0·51 +0·69
1895 452 455 402 307 1616 -198 8·07 8·10 +1·31 +0·42
1896 703 923 536 41 2203 +389 6·73 8·21 -0·03 +0·53
1897 351 780 351 520 2002 +188 6·23 7·53 -0·53 -0·15
1898 648 564 134 513 1859 +45 7·07 8·11 +0·31 +0·43
1899 527 121 133 88 869 -945 4·28 6·16 -2·48 -1·52
1900 442 508 603 203 1756 -58 6·90 7·13 +0·14 -0·55
1901 627 844 364 47 1882 +68 6·48 7·45 -0·28 -0·23
1902 248 369 468 701 1786 -28 4·25 6·40 -2·51 -1·28
1903 472 615 476 229 1792 -22 5·68 7·30 -1·08 -0·38
1904 .. .. .. .. .. .. .. .. .. ..

Appendix Q.

Table LXXV.—Station Addis Ababa. (Meteorological data).

1902
Month. Barometer Thermometer Hu-
mi-
di-
ty.		 Wind RAINFALL IN
MILLIMETRES
Mean. Vari-
ation
from
normal.		 Mean
max.		 Mean
min.		 Mean. Direc-
tion.		 Velo-
city.		 Fall. Vari-
ation
from
normal.
January .. .. 24·3 6·6 15·4 .. S .. 0 ..
February .. .. 22·0 9·3 15·6 .. S22E .. 65 ..
March .. .. 24·4 10·2 17·3 .. S24E .. 37 ..
April .. .. 22·3 11·1 16·7 .. S45E .. 111 ..
May .. .. 22·7 10·3 16·5 .. S45E .. 61 ..
June .. .. 25·2 9·9 17·5 .. S45E .. 142 ..
July .. .. 25·0 10·2 17·6 .. S45E .. 205 ..
August .. .. 24·8 10·0 17·4 .. S45E .. 167 ..
September .. .. 24·8 9·8 17·3 .. S45E .. 129 ..
October .. .. 25·9 6·9 16·4 .. S88E .. 16 ..
November .. .. 26·4 5·5 15·9 .. S86E .. 9 ..
December .. .. 25·6 4·5 15·0 .. E .. 39 ..
Mean .. .. 24·4 8·7 16·5 .. S47E .. 981 ..
1903
January .. .. 26·0 8·7 17·4 .. S51E .. 32 ..
February .. .. 28·2 8·3 18·2 .. S42E .. 25 ..
March .. .. 26·7 10·5 18·6 .. S45E .. 94 ..
April .. .. 27·8 10·0 18·9 .. S45E .. 88 ..
May .. .. 25·7 12·2 18·9 .. S45E .. 117 ..
June .. .. 24·4 10·0 17·2 .. S45E .. 191 ..
July .. .. 22·4 10·0 16·2 .. S45E .. 276 ..
August .. .. 21·6 10·5 16·0 .. S29E .. 248 ..
September .. .. 22·5 9·7 16·1 .. S .. 222 ..
October .. .. 24·5 7·3 15·9 .. S80E .. 28 ..
November .. .. 24·4 5·0 14·7 .. E .. 0 ..
December .. .. 23·6 6·5 15·0 .. N88E .. 18 ..
Mean .. .. 24·8 9·1 17·4 .. S53E .. 1339 ..
1904
January .. .. 25·4 4·6 .. .. .. 0 ..
February .. .. 25·9 8·4 .. .. E .. 20 ..
March .. .. 26·2 9·2 .. .. S59E .. 126 ..
April .. .. 26·6 9·9 .. .. S50E .. 31 ..
May .. .. 27·4 10·1 .. .. N80E .. 41 ..
June .. .. .. .. .. .. N84E .. .. ..
July .. .. .. .. .. .. .. .. .. ..
August .. .. .. .. .. .. .. .. .. ..
September .. .. .. .. .. .. .. .. .. ..
October .. .. .. .. .. .. .. .. .. ..
November .. .. .. .. .. .. .. .. .. ..
December .. .. .. .. .. .. .. .. .. ..
Mean .. .. .. .. .. .. .. .. .. ..

Table LXXVI.—Station Wad Medani (Meteorological data).

1902
Month. Barometer Thermometer Hu-
mi-
di-
ty.		 Wind RAINFALL IN
MILLIMETRES
Mean. Vari-
ation
from
normal.		 Mean
max.		 Mean
min.		 Mean. Direc-
tion.		 Velo-
city.		 Fall. Vari-
ation
from
normal.
January .. .. .. .. .. .. .. .. .. ..
February .. .. .. .. .. .. .. .. .. ..
March 756·2 .. 40·2 20·9 30·6 18 N10W .. 0 ..
April 756·6 .. 41·9 28·5 35·2 13 N .. 0 ..
May 757·2 .. 44·1 26·2 35·2 30 S72W .. 6 ..
June 757·5 .. 43·1 24·4 33·8 41 S36W .. 53 ..
July 758·9 .. 38·7 23·8 31·2 59 S34W .. 135 ..
August 758·1 .. 39·7 21·2 30·4 64 S5W .. 78 ..
September 758·4 .. 40·4 23·4 31·9 60 S9E .. 76 ..
October 758·2 .. 43·2 26·0 34·6 38 N53E .. 2 ..
November 758·3 .. 40·8 22·9 31·8 27 N5W .. 0 ..
December 759·9 .. 36·7 19·1 27·9 33 N34W .. 0 ..
Mean .. .. .. .. .. .. .. .. 350 ..
1903
January 760·3 .. 33·4 16·8 25·1 30 N33W .. 0 ..
February 760·8 .. 33·6 13·5 23·6 28 N6W .. 0 ..
March 758·4 .. 39·1 16·8 28·0 13 N8W .. 0 ..
April 755·2 .. 45·3 23·4 34·4 17 N24E .. 0 ..
May 756·6 .. 44·9 25·4 35·2 40 S6W .. 1 ..
June 757·3 .. 43·2 24·6 33·9 46 S4W .. 44 ..
July 757·8 .. 40·5 23·6 32·0 52 S9W .. 124 ..
August 757·6 .. 38·8 26·4 30·6 67 S13W .. 92 ..
September 758·2 .. 39·3 25·9 32·6 66 S21W .. 52 ..
October 757·4 .. 41·4 21·8 31·6 50 S63E .. 0 ..
November 758·0 .. 40·4 20·8 30·6 39 N10E .. 0 ..
December 758·2 .. 38·5 16·5 27·5 48 N21E .. 0 ..
Mean 758·0 .. 39·4 21·3 30·4 41 N4E .. 313 ..
1904
January 758·2 .. 37·4 17·9 27·6 73 N18E .. 0 0
February 758·2 .. 36·3 15·8 26·1 40 N1W .. 0 0
March 756·3 -1·0 40·4 17·7 24·6 22 N10E .. 0 0
April 756·8 +0·9 41·9 20·6 28·4 12 N3W .. 0 0
May 756·6 -0·3 42·5 24·3 31·7 27 S .. 40 +36
June 757·9 +0·5 42·1 12·3 27·2 41 S .. 0 -49
July 757·7 -0·4 39·5 14·3 26·9 43 S .. 70 -40
August 758·2 +0·2 40·9 22·4 31·6 61 S .. 67 -12
September .. .. .. .. .. .. .. .. .. ..
October .. .. .. .. .. .. .. .. .. ..
November .. .. .. .. .. .. .. .. .. ..
December .. .. .. .. .. .. .. .. .. ..
Mean .. .. .. .. .. .. .. .. .. ..

Table LXXVII.—Station Khartoum (Meteorological data).

1902
Month. Barometer Thermometer Hu-
mi-
di-
ty.		 Wind RAINFALL IN
MILLIMETRES
Mean. Vari-
ation
from
normal.		 Mean
max.		 Mean
min.		 Mean. Direc-
tion.		 Velo-
city.		 Fall. Vari-
ation
from
normal.
January 759·4 0 28·7 14·2 20·0 26 N4E 28 0 ..
February 758·3 -0·2 34·7 19·1 26·1 18 N17E 21 0 ..
March 756·1 -1·4 38·0 21·3 28·0 14 N12E ? 0 ..
April 756·0 +1·2 39·9 23·6 31·0 13 N18E ? 0 ..
May 754·8 +0·3 43·0 27·2 34·1 19 N63W 21 0 ..
June 756·0 +0·9 41·5 26·5 33·1 27 S12W 24 0 ..
July 757·1 +0·8 39·0 23·4 30·1 47 S4W 27 116 ..
August 756·2 -0·1 39·1 24·7 31·2 46 S12W 20 5 ..
September 756·8 +1·2 39·5 24·8 30·0 41 S23W 23 2 ..
October 757·4 +0·5 38·1 22·7 29·7 30 N13E 22 0 ..
November 758·1 +0·2 29·1 18·7 25·8 26 N30E 21 0 ..
December 759·6 +0·9 29·3 13·7 21·0 28 N24E 22 0 ..
Mean 757·1 +0·4 36·7 21·7 28·3 28 N33E 23 123 ..
1903
January 760·0 +1·2 26·9 11·6 18·6 31 N8E 23 0 ..
February 761·5 +3·0 28·2 12·6 19·5 32 N8W 23 0 ..
March 760·5 +3·0 32·6 15·1 23·5 18 N15W 20 0 ..
April 757·0 +2·2 39·9 20·8 30·2 18 N37E 19 0 ..
May 757·7 +3·2 40·9 24·7 32·3 28 S43E 10 24 ..
June 757·4 +2·3 41·4 25·8 33·0 28 S7W 21 0 ..
July 758·1 +1·8 38·7 25·1 31·6 36 S1W 15 18 ..
August 758·1 +1·8 37·5 24·3 31·0 44 S30W 18 12 ..
September 758·9 +3·3 38·0 20·9 30·1 40 S12W 15 14 ..
October 758·6 +1·7 38·7 22·8 30·3 32 N2W 15 0 ..
November 759·9 +2·0 36·9 20·9 28·0 32 N15E 13 0 ..
December 760·0 +1·3 34·9 18·0 25·2 34 N22E 13 0 ..
Mean 759·0 +2·4 36·2 20·2 27·8 31 N18E 18 68 ..
1904
January 760·2 +0·8 31·7 16·3 22·8 33 N15E 13 0 ..
February 760·4 +1·9 31·9 16·6 23·4 26 N6E 14 0 0
March 758·0 +0·5 36·0 18·4 26·6 18 N15E 17 0 0
April 758·0 +3·2 38·8 20·2 29·4 16 N1E 19 0 0
May 757·8 +3·3 41·6 23·2 32·6 20 N9W 17 0 —
June 758·5 +3·4 42·6 25·6 33·3 25 S2W 15 0 -5
July 757·6 +1·3 39·3 24·9 32·1 52 S44W .. 35 -20
August 758·3 +1·6 39·9 25·8 32·8 50 S28W .. 76 +45
September .. .. .. .. .. .. .. .. .. ..
October .. .. .. .. .. .. .. .. .. ..
November .. .. .. .. .. .. .. .. .. ..
December .. .. .. .. .. .. .. .. .. ..
Mean .. .. .. .. .. .. .. .. .. ..

Table LXXVIII.—Station Berber. (Meteorological data).

1902
Month. Barometer Thermometer Hu-
mi-
di-
ty.		 Wind RAINFALL IN
MILLIMETRES
Mean. Vari-
ation
from
normal.		 Mean
max.		 Mean
min.		 Mean. Direc-
tion.		 Velo-
city.		 Fall. Vari-
ation
from
normal.
January .. .. .. .. .. .. .. .. .. ..
February .. .. .. .. .. .. .. .. .. ..
March 756·3 .. 39·0 20·0 29·5 26 N5E .. 0 ..
April 755·9 .. 39·4 20·5 30·0 14 N5E .. 0 ..
May 755·6 .. 45·5 25·9 35·7 13 N14E .. 0 ..
June 755·6 .. 44·8 26·7 35·8 16 N20E .. 0 ..
July 757·1 .. 42·2 25·3 33·8 32 S82W .. 0 ..
August .. .. 43·2 29·2 36·2 28 N43W .. 0 ..
September .. .. 48·3 26·9 37·6 31 S23W .. 0 ..
October .. .. 39·3 23·4 31·4 40 N39E .. 0 ..
November .. .. 35·3 19·0 27·2 34 N5W .. 0 ..
December .. .. 33·0 14·7 23·8 40 N15W .. .. ..
Mean .. .. .. .. .. .. .. .. 0 ..
1903
January — .. 28·4 12·3 20·4 40 N20W .. 0 ..
February 761·6 .. 29·4 13·0 21·2 34 N23W .. 0 ..
March 759·2 .. 34·3 11·0 22·6 22 N16W .. 0 ..
April 756·2 .. 44·7 15·7 28·7 27 N5W .. 0 ..
May 756·4 .. 43·1 20·4 31·8 35 N63E .. 0 ..
June 755·6 .. 45·2 21·0 33·1 58 N20W .. 0 ..
July 756·0 .. 42·9 21·0 32·0 57 N56W .. 0 ..
August 755·6 .. 43·7 19·0 31·4 58 N76W .. 0 ..
September 757·1 .. 42·3 19·0 30·6 58 N10W .. 0 ..
October 757·6 .. 40·7 17·0 28·8 49 N15E .. 0 ..
November 758·9 .. 36·5 14·1 25·2 64 N7E .. 0 ..
December 758·9 .. 33·7 10·6 22·2 54 N2E .. 0 ..
Mean 755·6 .. 38·5 16·2 27·3 46 N10W .. 0 ..
1904
January 759·1 .. .. .. 20·9 55 N .. — —
February 758·1 — 34·7 13·3 24·2 48 N .. — —
March 755·7 -2·1 35·0 16·4 25·7 35 N2W .. — —
April 756·4 +0·4 38·3 19·7 29·0 19 N3E .. — —
May 756·3 +0·3 41·8 24·9 33·4 25 N9E .. — —
June 756·2 +0·6 43·2 26·0 34·6 18 N20W .. — —
July 755·8 -0·6 42·1 27·0 34·6 33 S16W .. — —
August 756·4 -0·3 42·1 26·1 34·1 26 S77W .. — —
September .. .. .. .. .. .. .. .. .. ..
October .. .. .. .. .. .. .. .. .. ..
November .. .. .. .. .. .. .. .. .. ..
December .. .. .. .. .. .. .. .. .. ..
Mean .. .. .. .. .. .. .. .. .. ..

Table LXXIX.—Station AssuÂn (Meteorological data).

1902
Month. Barometer Thermometer Hu-
mi-
di-
ty.		 Wind RAINFALL IN
MILLIMETRES
Mean. Vari-
ation
from
normal.		 Mean
max.		 Mean
min.		 Mean. Direc-
tion.		 Velo-
city.		 Fall. Vari-
ation
from
normal.
January 765·6 .. 22·6 8·5 14·8 50 N 17 0 ..
February 764·4 .. 30·6 11·4 20·1 23 N 17 0 ..
March 761·3 .. 31·7 13·4 22·0 25 N8W 18 0 ..
April 760·2 .. 35·5 18·2 26·6 23 N15W 17 0 ..
May 759·7 .. 41·6 23·9 32·6 16 N5W 21 0 ..
June 757·7 .. 41·7 23·3 32·4 20 N6W 19 0 ..
July 757·6 .. 41·3 24·0 32·5 20 N50W 17 0 ..
August 757·2 .. 41·4 23·9 32·5 20 N15W 18 0 ..
September 758·9 .. 41·2 23·9 31·6 32 N18W 18 0 ..
October 761·9 .. 37·9 21·1 28·5 41 N1W 18 0 ..
November 764·0 .. 29·0 14·2 20·8 43 N 20 0 ..
December 766·6 .. 23·8 9·2 14·3 52 N2W 19 0 ..
Mean 761·3 .. 34·8 17·9 25·7 30 N10W 18 0 ..
1903
January 767·7 .. 22·0 8·5 13·6 56 N 17 0 ..
February 768·3 .. 23·7 9·1 15·1 44 N 19 0 ..
March 764·6 .. 28·1 12·7 19·0 38 N 21 0 ..
April 760·1 .. 37·3 18·8 26·3 32 N 22 0 ..
May 768·9 .. 40·9 22·9 28·6 35 N4E 17 0 ..
June 757·5 .. 41·3 24·2 31·6 23 N1E 22 0 ..
July 756·8 .. 41·5 24·3 31·9 22 N1W 19 0 ..
August 756·2 .. 43·5 25·4 31·7 25 N 21 0 ..
September 757·5 .. 41·4 22·3 28·8 30 N 19 0 ..
October 758·6 .. 39·5 19·5 26·4 34 N 19 0 ..
November 761·1 .. 34·6 14·9 21·2 38 N 17 0 ..
December 761·5 .. 30·0 11·6 17·8 46 N 17 0 ..
Mean 761·6 .. 35·3 17·8 24·3 35 N 19 0 ..
1904
January 762·3 .. 24·7 8·1 14·7 48 N 18 0 ..
February 762·5 .. 27·1 10·1 16·8 43 N 17 0 ..
March 759·9 .. 31·1 13·1 20·4 31 N 22 0 ..
April 758·8 .. 34·1 17·1 24·3 28 N5W 19 0 ..
May 758·6 .. 36·5 19·9 27·3 26 N5E 23 0 ..
June 757·8 .. 40·2 23·0 31·2 23 N22W 19 0 ..
July 755·9 .. 40·4 24·4 32·4 27 N .. 0 ..
August 755·8 .. 36·1 23·7 29·9 34 N .. 0 ..
September .. .. .. .. .. .. .. .. .. ..
October .. .. .. .. .. .. .. .. .. ..
November .. .. .. .. .. .. .. .. .. ..
December .. .. .. .. .. .. .. .. .. ..
Mean .. .. .. .. .. .. .. .. .. ..

Table LXXX.—Station Cairo (Meteorological data).

1902
Month. Barometer Thermometer Hu-
mi-
di-
ty.		 Wind RAINFALL IN
MILLIMETRES
Mean. Vari-
ation
from
normal.		 Mean
max.		 Mean
min.		 Mean. Direc-
tion.		 Velo-
city.		 Fall. Vari-
ation
from
normal.
January 765·5 +0·8 17·2 7·2 11·3 77 N06W 6·5 5 -2
February 764·9 +1·0 22·8 8·8 14·7 69 N28W 6·1 6 +3
March 761·8 -0·5 24·2 10·1 16·0 62 N48W 8·6 1 -4
April 760·4 -0·4 28·8 13·4 20·0 56 N10W 10·9 0 -2
May 761·6 +1·2 33·4 16·3 23·9 47 N8W 14·9 0 -2
June 759·6 -0·2 35·1 18·6 25·8 50 N20W 11·4 0 0
July 758·0 +0·6 36·1 20·1 27·0 55 N18W 4·3 0 0
August 758·2 +0·3 35·6 20·4 26·8 62 N12E 5·0 0 0
September 760·3 -0·4 33·0 19·2 24·9 70 N27E 3·7 0 0
October 762·9 +0·5 31·0 17·0 22·8 71 N15E 5·6 0 -1
November 763·0 -1·3 24·0 13·6 17·9 67 S59W 3·1 0 -6
December 765·5 +0·8 18·6 8·5 12·6 69 S35W 3·7 1 -5
Mean 761·8 +0·2 28·3 14·4 20·3 63 N24W 7·0 13 -19
1903
January 767·2 +2·5 17·7 6·0 10·7 80 N36W 5·1 2 -5
February 767·6 +3·7 18·7 6·2 11·3 72 S68W 5·6 2 -1
March 764·2 +1·9 22·3 9·3 14·7 69 N20W 7·7 8 +3
April 760·4 -0·4 29·6 13·6 20·3 57 N3E 9·3 1 -1
May 761·7 +1·3 34·0 15·4 22·6 47 N22E 12·0 0 -2
June 759·4 -0·4 34·8 18·5 26·1 49 N21E 12·0 0 0
July 758·4 +1·0 34·6 19·7 26·1 60 N7W 10·0 0 0
August 757·8 -0·1 34·7 20·7 26·6 62 N14W 6·0 0 0
September 761·4 +0·7 30·7 18·1 23·4 72 N4W 6·0 0 0
October 763·7 +1·3 28·0 15·1 20·5 74 N10E 6·4 0 -1
November 764·9 +0·6 23·1 10·7 16·0 68 N12E 6·1 0 -6
December 764·3 -0·4 20·1 7·8 12·8 76 N72E 4·4 10 +4
Mean 762·6 +1·0 27·4 13·4 19·3 65 N2W 7·5 23 -9
1904
January 763·8 -0·9 19·3 6·9 11·3 73 N39E 18·5 9 +2
February 763·7 -0·2 23·2 7·6 13·7 74 S26W 16·6 19 +16
March 760·7 -1·6 23·8 9·6 15·2 73 N51W 16·6 0 -5
April 760·4 -0·4 27·6 12·0 18·5 72 N34E 17·1 16 +14
May 760·4 0 31·7 15·4 22·2 65 N29W 14·8 1 0
June 759·2 -0·6 34·2 17·9 25·0 59 N30W 12·4 0 0
July 756·6 -0·6 34·9 19·5 27·2 68 N8W .. 0 ..
August 758·2 -0·6 34·6 19·5 27·0 77 N14W .. 0 ..
September .. .. .. .. .. .. .. .. .. ..
October .. .. .. .. .. .. .. .. .. ..
November .. .. .. .. .. .. .. .. .. ..
December .. .. .. .. .. .. .. .. .. ..
Mean .. .. .. .. .. .. .. .. .. ..

Table LXXXI.—Station Alexandria.

1902
Month. Barometer Thermometer Hu-
mi-
di-
ty.		 Wind RAINFALL IN
MILLIMETRES
Mean. Vari-
ation
from
normal.		 Mean
max.		 Mean
min.		 Mean. Direc-
tion.		 Velo-
city.		 Fall. Vari-
ation
from
normal.
January 764·5 +0·8 18·3 10·3 13·3 70 N52W 22 104 +50
February 764·4 +1·4 22·3 12·6 15·9 69 N45E 18 8 -14
March 761·3 -0·5 20·6 13·0 15·8 68 N15W 19 4 -13
April 760·4 -1·1 22·8 14·9 17·8 71 N8E 18 5 +3
May 762·0 +1·5 26·8 18·2 20·9 64 N20E 16 0 -13
June 759·9 -0·6 27·1 18·6 22·1 72 N5W 17 0 0
July 758·1 +0·1 30·4 21·7 24·2 73 N28W 18 0 0
August 758·5 -0·1 31·8 23·3 25·1 73 N7W 18 0 0
September 760·4 -0·5 32·4 22·5 24·6 70 N6E 18 0 -1
October 763·0 +0·4 27·9 20·7 23·0 74 N40E 16 5 -4
November 762·2 -1·8 23·4 15·2 18·0 72 N60W 17 36 -3
December 764·3 +0·4 18·1 10·8 13·5 74 S71W 23 92 +12
Mean 761·6 0 25·2 16·9 19·5 71 N11W 19 254 +27
1903
January 766·6 +2·9 16·7 9·8 12·7 78 N6E 18 90 +36
February 767·0 +4·0 17·8 10·3 13·2 72 N52W 18 34 +12
March 763·8 +2·0 19·5 11·8 14·8 72 N4E 21 14 -3
April 760·5 -1·0 24·2 13·7 17·1 72 N30E 21 1 -2
May 762·2 +1·7 25·9 16·8 20·6 70 N25E 18 0 -13
June 759·8 -0·7 27·8 18·5 22·0 74 N 22 0 0
July 758·5 +0·5 29·1 20·1 23·7 74 N22W 26 0 0
August 757·7 -0·9 30·8 20·6 24·4 78 N17W 21 0 0
September 761·4 +0·5 30·0 18·9 23·3 68 N2W 22 0 -1
October 763·6 +1·0 27·2 17·1 21·0 70 N17E 21 0 -9
November 764·5 +0·5 23·6 13·1 17·1 72 N2E 25 10 -28
December 763·7 -0·2 21·3 11·4 15·2 76 N62W 18 24 -57
Mean 762·4 +0·8 24·5 16·0 18·6 73 N5W 21 173 -65
1904
January 763·9 +0·2 18·5 9·1 12·4 76 N3E 23 63 +9
February 763·9 +0·9 21·0 10·2 13·8 79 N13W 21 13 -10
March 760·8 -1·0 21·2 11·4 14·5 77 N8E 29 1 -16
April 761·6 -0·1 23·1 13·4 16·2 82 N12W 28 2 0
May 761·5 +1·0 26·2 16·3 18·8 85 N3W 24 — -13
June 760·4 -0·1 28·5 19·2 21·9 83 N12W 28 0 -0
July 756·5 +0·4 30·2 21·0 25·6 73 N40W 25 0 -0
August 758·2 +0·5 30·7 21·4 26·0 72 N12W 25 1 +1
September .. .. .. .. .. .. .. .. .. ..
October .. .. .. .. .. .. .. .. .. ..
November .. .. .. .. .. .. .. .. .. ..
December .. .. .. .. .. .. .. .. .. ..
Mean .. .. .. .. .. .. .. .. .. ..

                                                                                                                                                                                                                                                                                                           

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