N.
- Nicholl's metallic joint, [45]
- Nitro-glycerine, [209]
- Nordenfelt torpedo gun, the, [257]
- Norwegian torpedo launches, Thornycroft's, [163]
O.
- Observation, firing by, [69]
- —— ——, Prussian system of, [73]
- Observing telescope, shutter apparatus and, [84]
- Obstructions, destruction of passive, [113]
- ——, Lay's torpedo in clearing away, [151]
- Offensive torpedo operations, Russian and Turkish, [195]
- —— —— warfare still in its infancy, [115]
- —— torpedoes, failure of, [8], [11]
- —— ——, general remarks on, [156]
- Ohm, definition of the, [281]
- Ohm's law, application of, [276]
- Operations, torpedo, [187]
- —— ——, during the American civil war, [189]
- —— —— Austrian war, [192]
- —— —— Austro-Italian war, [188]
- —— —— Crimean war, [187]
- —— —— Franco-German war, [192]
- —— —— Paraguayan war, [191]
- —— —— Russo-Turkish war, [192]
- —— —— defensive, Russian, [193]
- —— ——, Turkish, [193]
- —— —— offensive, Turkish and Russian, [195]
- Ordinary type of torpedo boat, the, [179]
- Ottoman fleet, cause of failure of the, [14]
- Outrigger torpedoes, spar or, [154]
P.
- Papier maché safety plug, McEvoy's, [22]
- Paraguayan war, torpedo operations during the, [191]
- Passage through torpedo defences, clearing a, [111]
- Passive obstructions, destruction of, [113]
- Patent electric lamp, Siemens', [248]
- —— torpedo boat protective, Fosberry's, [182]
- Percussion fuzes, [23]
- —— ——, McEvoy's, [24]
- Permanent joint, Siemens', [47]
- —— magnets, [280]
- Physical state of the explosive substance, the, [204]
- Picric powder, [209]
- Planting submarine mines, rules to be observed in, [74]
- Plates, Brown's arrangement of earth, [100]
- ——, connections of switch, [100]
- Platinum wire fuze for conductivity, test of, [101]
- —— ——, test of resistance of, [101]
- —— —— fuzes, [33]
- —— ——, English service, [33]
- —— ——, McEvoy's, [34]
- Plongeur, French submarine boat, [185]
- Plug, Mathieson's cement safety, [21]
- ——, McEvoy's papier maché safety, [22]
- Pola, torpedo experiments at, [231]
- Polarization, definition of the term, [273]
- Porter's torpedo ship Alarm, Admiral, [159]
- Portsmouth, torpedo experiments at, [229], [233]
- Potential, definition of, [270]
- ——, Voltaic battery test for, [104]
- Powder, Horsley's, [216]
- ——, picric, [209]
- Precautions in manipulating the electric light, [252]
- Primer, Abel's mechanical, [23]
- ——, McEvoy's, [21]
- Projecting frames for torpedo ship defence, [111]
- —— Whitehead's fish torpedo, methods of, [138]
- Propeller, Thornycroft's screw, [170]
- Properties of a Voltaic cell, definition and, [269]
- Prussian system of firing by observation, the, [73]
Q.
R.
- Rain's detonating composition, [23]
- Reflecting galvanometer, Thomson's, [87]
- Reflector, Colt's, [7]
- Remarks on offensive torpedoes, general, [156]
- Resistance boxes, [97]
- —— of cables, test of electrical, [104]
- —— platinum wire fuze, test of, [101]
- ——, Voltaic battery test for internal, [104]
- Resistances by Wheatstone's balance, measurement of, [98]
- ——, circuit, [276]
- ——, measuring electrical, [93]
- Rheostat, the, [96]
- Rope mooring, single, [56]
- Rotation of armatures in Siemens' electric light apparatus, [246]
- Roux and Sarrau, experiments by, [207]
- Rules in connection with submarine mines, [29]
- —— to be observed in forming cable joints, [51]
- —— —— planting mines, [74]
- Russian and Turkish offensive torpedo operations, [194]
- —— defensive torpedo operations, [193]
- —— electro-mechanical mines, [68]
- —— torpedo boat attack at Batoum, [115], [202]
- —— —— Matchin, [196]
- —— —— Rustchuk, [200]
- —— —— Soukoum Kaleh, [201]
- —— —— Soulina, [198]
- —— —— off the Aluta, [200]
- —— ——, the final, [203]
- —— —— boats, Schibau's, [178]
- —— —— launch, Yarrow's, [172]
- —— torpedoes, [193]
- Russo-Turkish war, torpedo operations during the, [192]
- —— ——, torpedoes during the, [14], [115]
- Rutschuk, Russian torpedo attack at, [200]