A
Aerial messages, 228.
Aerial telegraphy, 229-233.
African loom, 115.
Alfred the Great, 196.
Alphabet, 208-211.
Alphabetical Code, 229, 236.
Amphora, 193.
Anacharsis, 170.
Anchor, 169, 170.
Arch, 135, 137.
Arc-light, 36.
Argand, 34.
Arkwright, 119.
Atrium, 16.
Automobile, 161.
Axle, 147.
B
Balance-wheel (of a watch), 199.
Bamboo dwelling, 128.
Basket weaving, 110.
Batten (of loom), 115.
Beam (of plow), 75, 80.
Bell, Alexander Graham, 239.
Bellows, 43, 47.
Bessemer, Sir Henry, 51.
"Black room," 16.
Blast-furnace, 46-52.
Block-book, 219.
Boat, history of, 166-186.
Boiling, 15.
Bolting (flour), 107.
Book, history of, 203-221.
Bourseul's telephone, 239.
Branca's engine, 58, 71.
Brazier, 18.
Bresnier, 163, 164.
Bronze, 38-40.
Bronze Age, 38.
Burning glass, 9.
C
Cable, Atlantic, 238.
Calamus, 213.
Candles, 30-32, 190.
Canoe, 168.
Capital (of column), 133.
Car, electric, 161.
Carriage, history of, 144-165.
Cart, 147-151.
Cast iron, 47.
Cave dwellings, 125.
Chappe, Claude,

Chemical matches, 9.
Chilcoot loom, 113.
Chimneys, 21.
China, 175, 191.
Clepsydra, 193-195.
Clermont, the, 183.
Clock, history of, 187-202.
Cliff dwellings, 125.
Coach, 153.
Coke, 49.
Cologne, cathedral, 138.
Colonial architecture, 141.
Columns, 131, 132.
Compass, mariner's, 175.
Complete harvester, 95.
Condenser, 69.
Cooking, 15, 19.
Corinthian column, 133.
Cradle (for scythe), 86.
Cradle scythe, 87.
Cugnot's steam-engine, 156.
Cutter (for reaper), 90, 92.
D
Darby, Abraham, 49.
Deck (of a boat), 172.
De Vick, Henry, 197.
Digging-stick, 74.
Doric column, 132.
Drag, 147.
Dudley, Dud, 49.
Dutch plow, 79.
E
Edison, Thomas, 37.
Egypt (ancient), 76, 85, 128, 151, 153, 208, 211, 222.
Electric car, 161.
Electric light, 36.
Electric stove, 27.
Electric telegraph, 232-239.
Electro-magnet, 232.
Elevator architecture, 142.
England, 22, 49, 59, 89, 176, 178, 227.
Ericsson, John, 184.
Escapement, 198.
F
Faust, John, 221.
Felly, 152.
Field, Cyrus W., 238.
Firebrands, 4.
Fire-clock, 189.
Fire drill, 6.
Fireflies, 28.
Fireplace, 14, 20.
Fire signals, 228.
Fitch, John, 181.
Flying-machine, 163.
Flying shuttle, 116.
Forge, history of, 38-53.
France, 23, 178.
Franklin, Benjamin, 233.
Friction-chemical match, 10.
Fulton, Robert, 183.
Furnaces, 25, 46.
G
Gable, 131, 136.
Galley, 171.
Gang plow, 78, 83.
Gas, 35.
Germany, 46, 221.
Gothic architecture, 137.

Gray's electric telegraph, 233.
Greeks (ancient), 18, 32, 57, 86, 131, 152, 171, 192, 215, 224.
Gutenberg, John, 221.
H
Haimault scythe, 87.
Hargreaves, 119.
Harvester, complete, 95.
Heating, 7.
Hebrews (ancient), 86, 102, 222.
Heddle, 112, 114.
Henry, Joseph, 234.
Hero's Engine, 55, 71.
Hertz, Heinrich, 241.
Hieroglyphics, 208.
Hill, Sir Rowland, 227.
Hooke, Robert, 230.
Hopper (for mill), 100.
Horse, 146.
Horseless carriage, 161.
Hot blast, 50.
House, history of, 123-147.
Hub, 151.
Hussey, Obed, 91.
Huygens, Christian, 201.
Hypocaust, 18.
I
Ideographs, 207.
Incandescent light, 37.
Industrial revolution, 119, 158.
Ionic column, 133.
Iron Age, 44-52.
Iron, history of, 41-63.
Iron plow, 81.
J
Jacquard's attachment, 122.
Jacquard, Joseph, 120.
Jefferson, Thomas, 81.
Job's plow, 75.
Jouffroy, Marquis, 178.
K
Katta, 74.
Kay, John, 116.
Keel, 169.
Knocking-stone, 97.
Koster, Laurence, 221.
Knots (for writing), 204.
L
Lake dwellings, 126.
Lamp, history of, 28-37.
Langley, Professor, 165.
Lathe (of loom), 115.
Letter, 222.
Livingstone (quoted), 99.
Llama, 145.
Locomotive, 156-161.
Loom, history of, 109-122.
M
McCormick, Cyrus, 91.
Magnetic needle, 175.
Manuscript volumes, 217.
Marconi, William, 240.
Mariner's compass, 175.
Match, history of, 4-12.
Memory aids, 204.
Message, history of the, 222-241.
Message sticks, 205.

Meteoric iron, 41.
Mill, history of, 97-108.
Millstone, 100.
Mortar, 97.
Moldboards, 78, 81.
Morse, S. F. B., 235.
Moveable types, 220.
Murdock, William, 35.
N
Newbold, Charles, 82.
Newcomen, Thomas, 62.
Neilson, 49.
Newton, Sir Isaac, 156.
"NÜrenburg eggs," 199.
O
Oarlock, 168.
Oersted, Professor, 233.
Ogle, Henry, 90.
Ore (iron), 41.
P
Pack (for burdens), 145.
Paddle-wheel, 183, 184.
Paper-making, 218.
Papin, Denis, 61, 178.
Papyrus, 212.
Parchment, 214.
Parsons, C. A., 71.
Pendulum, 200.
Penny postage, 227.
Percussion matches, 8.
Pergamus, king of, 214.
Pestle, 98.
Phillipides, 224.
Phoenicians, 171, 210.
Phonograms, 209.
Phosphorus matches, 11.
Picture signs, 206.
Pig iron, 47.
Piston, 62.
Plato, 194.
Pliny, 76, 89.
Pliny's plow, 77.
Plow, history of, 73-84.
Pointed arch, 137.
Polybius, 228.
Post, 222.
Postage, 227.
Postage stamps, 226.
Postal systems, 223-228.
Potter, Humphrey, 64, 69.
Power-loom, 119.
Printing, 218.
Propellers, 184.
Pueblo loom, 113.
Q
Quipu, 204.
R
Radiators, 25.
Raft, 168.
Reaper, history of, 85-96.
Richaud, 22.
Reed (of loom), 115.
Reed (for writing), 213.
Reel (for reaper), 90.
Renaissance, 139.
Robert F. Stockton, 186.
Roller-mill (for flour), 107.
Romans (ancient), 18, 57, 86, 134, 152, 171, 196, 215, 225.
Rudder, 169, 170, 174.
Rumsey, James, 180.

S
Safety match, 12.
Safety valve, 61.
Sail, 168.
St. Paul's (cathedral), 139.
St. Peter's (cathedral), 139.
Screw-propeller, 184.
Scythe, 86.
Scythe cradle, 88.
Self-raking reaper, 93.
Self-binding reaper, 94.
Seward, W. H. (quoted), 83.
Share (of plow), 75.
"Shay, wonderful one hoss," 153.
Shed (of cloth), 113.
Shuttle, 115, 116.
Shuttle-race, 118.
Sickle, 85.
Sledge, 147.
Smelting, 42.
Smoke, 35.
Somerset, Edward, 58.
Spinning Jenny, 119.
Spit (for cooking), 15.
Spokes, 151.
Spring (of clock), 199.
Spring (of vehicle), 155.
Stamps (postage), 226.
Steam, 54.
Steamboat, development, 177-186.
Steam-carriage, 156.
Steam-Engine, history of, 54-72.
Steam-plow, 84.
Steam-turbine, 71.
Steel, 51.
Stephenson, George, 159.
Stevens, John, 184.
Stone Age, 38.
Stone dwelling, 127.
Stove, history of, 13-27.
Strike-a-light, 8.
Sturgeon, William, 233.
Sun dial, 188.
Syllable-sounds, 208.
Symington, William, 182.
Syrian plow, 75.
T
Tapers, 33.
Telegraph, 228-239.
Telephone, 239-241.
Tiller, 173.
Tinder, 7.
Torch, 29, 31.
Tradition, 203.
Travail, 147.
Trevethick, Richard, 158, 162.
Trireme, 172.
Turbine (steam), 71.
Types, moveable, 220.
U
United States, 80, 91, 106, 178, 180.
V
Vail, Alfred, 235.
Vedas, 203.
Vienna bread, 106.
Volume, 213.

W
Walker, John, 10.
Warming pan, 17, 22.
Warp, 112.
Watches, 199.
Water-clock, 191-195.
Water-mill, 103.
Watt, James, 67, 70, 158.
Weaver-bird, 110.
Webster, Daniel, 81.
Weft, 112.
Weight-clock, 196-199.
Wheatstone, Professor, 239.
Wheel, development of, 147-151.
Wheel-barrow, 148.
Wicks, 30, 34.
Wigwams, 123.
Wireless telegraph, 241.
Wireless telephone, 241.
Wood, Jethro, 82.
Worcester, Marquis of, 58, 78, 230.
Wrought iron, 43.
Y
Yarn beam, 110.
Z
Zuni Indians, 125.