D.
- Daniell's signalling battery, [78]
- Defects observed in the conductivity of cables, [103]
- —— of chemical fuses, [24]
- —— electrical submarine mines, [29]
- Defence of harbours by booms, [110]
- ——, ship, [10]
- Defences, clearing a passage through torpedo, [111]
- Defensive purposes, Harvey's torpedo for, [129]
- —— torpedo operations, Russian, [193]
- —— ——, Turkish, [193]
- —— —— warfare, [13]
- Definition and properties of a Voltaic cell, [269]
- —— of a condenser, [279]
- —— potential, [270]
- —— the ohm, [281]
- —— —— term explosion, [204]
- —— —— explosive force, [204]
- —— —— polarization, [273]
- Description of a frictional electric machine, [278]
- —— —— series of firing keys, [81]
- —— —— Yarrow's torpedo boat, [172]
- —— —— Calland's and Marié-Davy's batteries, [275]
- —— —— Siemens' electric light apparatus, [241]
- —— —— Whitehead's fish torpedo, [133]
- Destroyer, Ericsson's torpedo vessel, [160]
- Destruction of passive obstructions, the, [113]
- —— —— the Albemarle, [191]
- —— —— Duba Saife, [197]
- —— —— Suna, [194]
- Detector galvanometer, the, [88]
- Detonating composition, Rain's, [23]
- Detonation, [206]
- —— experiments, Abel's, [216]
- ——, theory of, [206]
- Dielectric, gutta percha as a, [38]
- ——, meaning of, [279]
- Differential galvanometer, the, [88]
- Direction of current, [272]
- Directions for using the diving apparatus, [261]
- Discharge test, the, [103]
- Disconnector, the, [53]
- Diver, dressing the, [262]
- Divers, boots for, [261]
- ——, breast plate for, [260]
- ——, crinoline for, [261]
- ——, helmet for, [260]
- ——, ladder for, [260]
- Diving, [259]
- —— dress, the, [260]
- ——, signals employed in, [263]
- Dorothea, Fulton's destruction of the, [4]
- Double fluid batteries, [274]
- —— ——, single and, [272]
- Drifting torpedoes, [116]
- —— ——, American extempore, [119]
- —— ——, Bushnell's, [2]
- —— ——, Fulton's, [5]
- —— ——, Lewis's, [117]
- —— ——, McEvoy's, [118]
- Dualin, [216]
- Duba Saife, destruction of the, [197]
- Duplex spar torpedo, McEvoy's, [154]
- —— ——, arrangement of wires in, [155]
- Dutch torpedo launches, Thornycroft's, [168]
- —— ——, Yarrow's, [172]
- Dynamite, [211]
- Dynamo-electric machines, methods of coupling, [254]
- —— machine, Siemens' low tension, [75]
E.
- Earth plates, Browne's arrangement of, [100]
- Effect compared, explosive force and, [204]
- Efficiency of Thornycroft's boat engines, [171]
- Electric cables, creeping for, [112]
- —— ——, Hooper's, [41]
- —— ——, insulated, [38]
- —— ——, insulation test for, [102]
- —— ——, jointing, [44]
- —— ——, Siemens', [40]
- —— ——, Silvertown, [41]
- —— circuit, closing the, [60]
- Electric circuit, the, [267]
- —— fuses, [33]
- —— lamps, automatic, [248]
- —— ——, Siemens' patent, [248]
- —— light apparatus, Siemens', [241]
- —— ——, conducting wires for, [247]
- —— ——, light produced by, [244]
- —— ——, rotation of armatures in, [246]
- —— ——, wear and tear of, [247]
- —— ——, application of the, [256]
- —— ——, concentration of the, [251]
- —— ——, precautions in manipulating, [252]
- —— ——, self-acting shunt for Siemens', [245]
- —— ——, the, [239]
- —— machine, description of a frictional, [278]
- —— machines, methods of coupling dynamo, [254]
- Electrical resistance of cables, test of the, [104]
- —— resistances, measuring, [93]
- —— submarine mines, [10], [27]
- —— ——, advantages of, [28]
- —— ——, defects of, [22]
- —— ——, mooring, [54]
- —— ——, rules for using, [29]
- —— test of insulated joints, [104]
- —— testing, Armstrong's system of, [107]
- —— tests, [85]
- Electricity, frictional, [278]
- ——, methods of generating, [269]
- ——, theory of, [265]
- Electro-contact mines, circuit closers for, [63]
- Electrolytes, [271]
- Electro-positive and electro-negative, the terms, [271]
- Electro-magnet, the, [281]
- Electro-mechanical mines, Russian, [68]
- Electrometers, [86]
- ——, Thomson's quadrant, [86]
- Electro-motive force, [270]
- —— ——, Voltaic battery test for, [105]
- —— forces, comparing, [94]
- Employment of torpedo ships, the, [158]
- Engines, efficiency of Thornycroft's boat, [171]
- England, torpedo experiments in, [222]
- English service platinum wire fuse, the, [33]
- —— torpedo boats, Yarrow's, [173]
- Ericsson's torpedo vessel Destroyer, [160]
- Experiment at Cherbourg, torpedo boat, [170]
- —— with a torpedo boat, flotation, [171]
- Experiments, Abel's detonation, [216]
- —— by Professor Abel, [207]
- —— —— Roux and Sarrau, [207]
- ——, Colt's torpedo, [7]
- ——, Fulton's practical, [5]
- ——, torpedo, at Carlscrona, [220], [224], [232]
- —— —— Chatham, [220]
- —— —— Copenhagen, [223]
- —— —— Kiel, [222]
- —— —— Pola, [231]
- —— —— Portsmouth, [229], [233]
- —— ——, Fulton's French, [3]
- —— ——, in Austria, [220]
- —— —— England, [222]
- —— —— Turkey, [232]
- —— with countermines, [235]
- —— —— at Carlscrona, [237]
- —— —— Stokes Bay, [236]
- —— —— in the Medway, [236]
- Explosion, definition of the term, [204]
- Explosive agents, torpedo, [217]
- —— compounds, [208]
- —— force and effect compared, [204]
- —— ——, definition of the term, [204]
- —— mixtures, [208]
- —— substance, physical state of the, [204]
- Explosions, illustrated torpedo, [218]
- Extempore drifting torpedoes, American, [119]
- —— high tension fuzes, [37]
- —— ——, Fisher's, [37]
- —— mechanical mine, [21]
F.
- Failure of offensive torpedoes, the, [8]
- Fastest vessel in the world, the, [177]
- Final Russian torpedo boat attack, the, [203]
- Firing batteries, [75]
- —— by cross bearings, [70]
- —— —— intersectional arcs, [71]
- —— —— observation, [69]
- —— —— preconcerted signal, [71]
- —— Harvey's torpedoes, mode of, [121]
- —— keys, [80]
- —— ——, description of a series of, [81]
- —— ——, Morse, [81]
- ——, mode of, [205]
- —— ——, in 1829, [6]
- —— Whitehead torpedoes, Thornycroft's method of, [140]
- Fish torpedo, adjustments of Whitehead's, [136]
- —— ——, description of the, [133]
- —— ——, invention and adoption of the, [131]
- —— ——, methods of projecting the, [138]
- —— ——, the mode of ignition of the, [135]
- Fish torpedoes in war, employment of, [133]
- —— ——, Thornycroft's method of firing, [140]
- —— ——, Woolwich, [140]
- Fisher's extempore high tension fuze, [37]
- Floating torpedoes, [116]
- Flotation experiment with a torpedo boat, [171]
- Fluid batteries, double, [274]
- —— ——, single and double, [272]
- Fluid cell, action in a single, [273]
- Force compared, explosive effect and, [204]
- ——, definition of the term explosive, [204]
- ——, electro-motive, [270]
- ——, Voltaic battery test for electro-motive, [105]
- Forces, comparing electro-motive, [94]
- Fore and aft mooring, [56]
- Form of Lay's torpedo boat, an improved, [153]
- —— —— torpedo case, [31]
- Fosberry's patent torpedo boat protective, [182]
- Frame torpedoes, [18]
- Frames, projecting, [111]
- Franco-German war, torpedo operations during the, [192]
- —— ——, torpedoes in the, [13]
- French submarine boat Plongeur, [185]
- —— torpedo launches, Thornycroft's, [165], [169]
- —— towing torpedoes, [131]
- Frictional electric machine, description of a, [278]
- —— electricity, [278]
- Fulminate of mercury, [215]
- Fulton, Robert, [2]
- Fulton's attempt against the Argus, [6]
- —— block ship, [5]
- —— cable cutters, [5]
- —— destruction of the Dorothea, [4]
- —— drifting torpedoes, [5]
- —— failures, [2]
- —— French torpedo experiments, [3]
- —— harpoon torpedoes, [5]
- —— practical experiments, [5]
- —— return to America, [4]
- —— spar torpedoes, [5]
- —— stationary submarine mines, [5]
- Fuzes, Abel's, [37]
- ——, Beardslee's, [35]
- ——, chemical, [23]
- ——, defects of chemical, [24]
- ——, electric, [33]
- ——, extempore, [37]
- ——, extempore, Fisher's, [37]
- —— for conductivity, test of platinum wire, [101]
- ——, high tension, [34]
- ——, improved form of Jacobi's, [24]
- ——, McEvoy's percussion, [24]
- ——, percussion, [23]
- ——, platinum wire, [33]
- ——, ——, English service, [33]
- ——, ——, McEvoy's, [34]
- ——, sensitive, [23]
- ——, Statham's, [35]
- ——, test of resistance of platinum wire, [101]
- ——, testing high tension, [102]
- ——, Von Ebner's, [36]
G.
- Galvanometer, astatic, [87]
- ——, detector, [88]
- ——, differential, [88]
- ——, tables, Siemens' universal, [287]
- ——, thermo, [89]
- ——, Thomson's reflecting, [87]
- ——, three coil, [88]
- ——, universal, Siemens', [89]
- Generating electricity, methods of, [269]
- German torpedo vessel Uhlan, the, [158]
- Gun, the Nordenfelt torpedo, [257]
- ——, Hotchkiss torpedo, [259]
- Gun-cotton, [212]
- Gunpowder, [208]
- Guns, torpedo, [257]
- Gutta-percha as a dielectric, [38]
H.
- Harbours by booms, defence of, [110]
- Harpoon torpedoes, Fulton's, [5]
- Harvey's towing torpedo, [119]
- —— ——, brakes for, [123]
- —— ——, buoys for, [122]
- —— ——, for defensive purposes, [129]
- —— ——, launching, [123]
- —— ——, methods of attack with, [127]
- —— ——, mode of firing, [121]
- —— ——, tactics with, [127]
- —— ——, the value of, [129]
- Helmet for divers, [260]
- Herreshoff's torpedo boats, [178]
- High tension fuzes, [102]
- Hooper's electric cables, [41]
- —— material, [39]
- Horsley's powder, [216]
- Hotchkiss torpedo gun, the, [259]