LIST OF ENGRAVINGS.
Henry F. French
PAGE.
Elkington's Mode
32
,
33
Ditch and Bore-hole
35
Keythorpe System
42
Theory of Springs
80
-
84
Plug Drainage
106
,
107
Mole Plow
108
Wedge Drains
111
Shoulder Drains
111
Larch Tube
112
Pole Drain
113
Peat Tiles and Tool
113
Stone Drains
115
-
117
Draining Bricks
121
Round Pipes
122
Horse-shoe Tile
124
Sole-Tile
125
Pipes and Collar
126
Flat-bottomed Pipe-Tile
129
Drains across Slope
150
Draining Irregular Strata
162
Relief Drains
162
Small Outlet
178
Large Outlet
179
,
180
Outlet, with Flap
181
Well, with Silt Basin
186
Peep-hole
188
Spring in Drained Field
189
Main of Two Tiles
194
Main of Several Tiles
194
Plan of Drained Field
195
Junction of Drains
196
Branch Pipe
197
Daines' Tile Machine
209
Pratt's Tile Machine
210
Tiles, laid well and ill
229
Square and Plumb-Level
229
Spirit Level
230
Staff and Target
231
Span, or A Level
232
Grading Trenches by Lines
233
Challoner's Level
235
Drain Spades
235
Spade with Spur
236
Common Shovel and Spade
236
Long-handled Round Shovel
237
Shovel Scoop
237
Irish Spade
238
Birmingham Spades
240
Narrow Spades
242
English Bottoming Tools
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