A
A-8, English submarine, 47
A-1, English submarine, 48
Abbott, Leon, 123
Aerial torpedoes, 240
Aeroplanes, 234ff
Air supply, question of, 49-51
"Alligator," Russian submarine, 67
"American Turtle," 79, 80, 149ff
"Amphibious" submarines, 202ff
Anchoring weights, 20, 21
Appropriation, U. S., 1893, requirements, 161ff
Appropriation, U. S., 1915, requirements, 175
"Argonaut," 1, 7, 10, 36, 41, 50, 55, 58, 60, 70, 125, 177ff, 264, 270, 276
"Argonaut, Junior," 125, 127, 176ff
Asphyxiation, 32, 70
B
Baker, G. F., 121, 161, 163
Ballast tanks, 9
"Battle of the Kegs," 81
Becklemechief, Capt., 65
Berg, H. O., 137
Blinding the submarine, 244
Board on Submarine Defense, report of, 209ff, 215ff
Bombs, 248
Bonaparte, Napoleon, 81
Bottom wheels, 216, 219
Bourgois and Brun, 153
Brayton engines, 94
Bubonoff, Constructor, 65
Buoyancy, negative, 18-19
Buoyancy, positive, 18-19
Buoyancy, reserve of, 9
Bushnell, Dr. David, 79, 149
C
Carbonic acid gas, engine, 10
Cargo-carrying submarines, 251ff
Champion, S. T., 127
Champion, B. F., 128
Churchill, Winston, 217
Classes of submarine, 206
Coast defense submarines, 197
Compass, adjustment of, 180, 181
Compressed air engine, 10
"Congress, The," 87
Conning tower (invisible), 26
Converse, G. A., 162
Convoy, 249
Criticisms of submarine, 290ff
Cruiser submarines, 199ff
"Cumberland, The," 87
D
Dangers of submarining, 32ff
Daniels, Josephus, 139
Dawson, Sir Trevor, 174
Day, 79
Debrell, Cornelius, 77, 78
Deck guns, 239
Decompression, question of, 278
Defensive devices, 232
"Delphine," Russian submarine, 65, 66
Depth control, 17ff, 216
Destiny of submarine, 296, 297
Detection of surface ships, 257
"Deutschland, The," 251
Dickey, 91
Diesel engines, 13ff
Dirigibles, 234ff
Discs, whirling, 248
Divers, 59, 276, 277ff
Divers' compartment, 30, 51ff, 221
Dixon, Lieut., 39
Doyle, A. Conan, 4
Dunkerly, 91
"Dzrewiecke apparatus," 192
E
E-2, American submarine, 76
"Eagle, The," 79, 80, 150
Echo device, 241
Edison, Thos. A., 16, 141
Electric Boat Company, 114
Engines, 9ff
Engines, difficulty with, 11ff, 292, 293
"Even-keel," 173ff, 183
Exius, Otto, 140
Explosions, 70ff
F
F-1, American submarine, 76
F-4, American submarine, 76
"Farfadet," French submarine, 76
Fenian movement, 96, 157, 158
"Fenian Ram," 96ff, 157, 158
Fessenden, Prof., 27, 238
Fisher, J. J., 56
Fleet submarines, 199ff
"Foca, The," 13
Folger, Commander, 162
"Fortuna," 63
Freight submarine, 58
"Fulton," American submarine, 76
Fulton, Robert, 81, 151, 294, 295
G
Gadd, Capt. Alex., 44
Garrett, G. W., 158
Geological investigation (submarine), 264
Goubet, M., 160
Government aid to inventors, 138ff
Grubb, Sir Howard, 25
"Gustave ZÉdÉ," French submarine, 162
"Gymnote," French submarine, 162
Gyroscope, 29
H
Hale, Senator, 125
Halstead, O. S., 155
Hanson, Capt. Scott, 263
Hasker, C. H., 38, 152
Haswell, C. H., 126
Holland, J. P., 84ff, 157, 163, 295
Holland, J. P., Jr., 85
"Holland, The," American submarine, 190, 191
Hopkinson, Francis, 81
"Housatonic," S. S., 39
Hull, construction of, 6, 7
"Hunley, The," 37, 38, 152, 158
Hydrogen, 16
Hydrographic investigation, 269ff
Hydroplanes, 17, 171ff
I
"Intelligent Whale, The," 155ff
Internal combustion engines, 10
International peace, influence of submarines, 295
Installation of batteries, 16
Inventors, proposed institution for, 146ff
"Irish Ram." See "Fenian Ram."
J
Jonson, Ben, 77
K
Koenig, Capt. Paul, 251
Krupps, 183, 184
L
Lake, 1893 design, 169ff
Lauboeuf, M., 2, 173, 183
Laurenti, naval constructor, 183, 186
Lees, Capt. Edgar, 174
Legitimacy of the submarine, 294
Limitations of the submarine, 290ff
Lister, John, 91
"Lutine, The," 76
M
Magnetic devices, 247ff
Malster, W. T., 131
Maxim, Sir Hiram, 137
"Merrimac, The," 86
Metacentric height, 8ff
Microphone, 198
Mines, 80, 220
Mine-evading submarine, 206, 216ff
Mine-laying submarine, 208, 216ff
Mirabello, Admiral, 185
"Monitor, The," 86
"Morse, The," French submarine, 191
N
Nansen, Capt., 263
"Narval, The," French submarine, 191
"Nautilus, The," 81
Nautilus Submarine Boat Co., 109
Naval Consulting Board, 139, 141ff
Nets, used vs. submarines, 242ff, 245ff
Net-evading submarines, 206, 216ff
New Orleans submarine, 39, 152, 153
New York Herald, 129, 141
Nordenfelt, 158, 159
O
"Obry" gear, 29
Offensive devices, 232
Officina Galileo, 24
Omniscope, 25
One-man submarines, 205
Oscillator, Fessenden, 27, 238
P
Paget, Lord, 87
Patent attorneys, 134
Patent laws, 187
Patent "sharks," 134
Payne, Lieut., 38
"Peacemaker, The," 83, 160
Peral, Lieut. Isaac, 160
Periscope, 22ff, 47, 48
Perpetual motion machine, 135, 136
Piratical submarine, 294
Pitt, William, 83
PlantÉ storage battery, 15
"Plongeur, Le," French submarine, 153, 154
"Plunger, The," 166ff, 176, 188ff
"Pluviose, The," French submarine, 76
Promoters, 130ff
Propelling mechanism, 9ff
"Protector, The," 43, 50, 62, 209ff, 235, 260, 262
R
"Resurgam, The," 158
Rice, Isaac, 115, 192
Richards, G. M., 98, 99, 102
"Running down," danger of, 42ff
Russian experiences, 63ff

S
Sampson, Admiral, 96, 124
Salvaging, 57, 275
"Schwartzkopf" torpedoes, 247
Scientific American, 242
Scott, Sir Percy, 3
Searching for wrecks, 275, 276
Searchlights, 240
Shell-fishing, 285ff
Smoke screen, 249
Sound receivers, 27ff
Sound detectors, 237ff, 239
Spear, L. Y., 173
Speed, demand for, 11-19
Stability, 7ff, 70, 150
Storage batteries, 9, 15ff
Submarine engineering, 287
Submarine guns, 240
Submarine supply boats, 223ff
Submarine vs. submarine, 244
Sueter, Murray F., 173
Superstructure, 7, 182
T
Tillian, Capt., 67
Torpedoes, 28ff, 247
Torpedo tubes, 28
Triangular drag, 165
Trinitrotoluol (T-N-T),