C. Cable, Colt's electric, 7 ---- cutters, Fulton's, 5 Cables, circuit closer, 42 ----, creeping for electric, 112 ----, defects observed in the conductivity of, 103 ----, Hooper's, 41 ----, insulated electric, 38 ----, insulation test for electric, 102 ----, jointing electric, 44 ----, junction boxes for multiple, 52 ---- ---- single cored, 52 ----, land service, 43 ----, multiple, 42 ----, sea service, 43 ----, Siemens' electric, 40 ----, Silvertown electric, 41 ----, single cored armoured, 42 ---- ---- unarmoured, 43 ----, special, 43 ----, test of electrical resistance of, 104 _Cairo_, the loss of the, 189 Calland and Marié-Davy batteries, description of the, 275 Capabilities of Lay's torpedo boat, 147 ---- ---- Whitehead's fish torpedo, 134 Carlscrona, experiments with countermines at, 237 ----, torpedo experiments at, 220, 224, 232 Case, conical-shaped torpedo, 32 ----, cylindrical-shaped torpedo, 32 ----, form and construction of torpedo, 31 ----, spherical-shaped torpedo, 32 Cell, action in a single fluid, 273 ----, chemical action of a Daniell, 274 ----, definition and properties of a Voltaic, 269 ----, description of a Menotti, 78 ----, tests for insulation, sea, 106 ---- ----, sea, 100 Charges, size of torpedo, 218 Chatham, torpedo experiments at, 220 Chemical action, 269 ---- fuzes, 23 ---- ----, defects of, 24 Cherbourg, torpedo boat experiment at, 170 Circuit breakers, 62 ---- closer cables, 43 ---- closers, Austrian self-acting, 64 ---- ----, electro-contact mine, 63 ---- ----, Mathieson's inertia, 61 ---- ----, improvements in, 63 ---- ---- spiral spring, 63 ---- ----, McEvoy's mercury, 65 ---- ---- weight magneto, 66 ---- ----, the use of, 60 ----, closing the electric, 60 ---- resistances, 276 ----, short, 268 ----, the electric, 267 Civil war, torpedo operations during the American, 189 ----, torpedoes in the American, 115 Clearing a passage through torpedo defences, 111 Coil galvanometer, the three, 88 Colt, experiments by Colonel, 7 Colt's electric cable, 7 ---- reflector, 7 _Commodore Jones_, the loss of the, 189 Commutators or switch plates, 96 Comparing electro-motive forces, 94 Composition, Rain's detonating, 23 Compounds, explosive, 208 Concentration of the electric light, 251 Condenser, definition of a, 279 Conductivity of cables, defects observed in the, 103 ----, test of platinum wire fuze for, 101 Conductors, 266 Confederate submarine boat, 185 Connections of switch plates, 100 Construction of booms, 110 ---- ---- torpedo case, 31 Copenhagen, torpedo experiments at, 223 Countermining, 112 Countermines, experiments with, 235 ---- ---- at Carlscrona, 237 ---- ---- Stokes Bay, 236 ---- ---- in the Medway, 236 Coupling dynamo-electric machines, methods of, 254 Creeping for electric cables, 112 Crimean war, submarine mines during the, 27