Defensive Torpedo Warfare (_continued_)--Electrical Submarine Mines--Electrical Fuzes--Insulated Electric Cables--Electric Cable Joints--Junction Boxes--Mooring Electrical Submarine Mines 27 CHAPTER IV. Defensive Torpedo Warfare (_continued_)--Circuit Closers--Firing by Observation--Voltaic Batteries--Electrical Machines--Firing Keys and Shutter Apparatus--Testing Submarine Mines--Clearing a Passage through Torpedo Defences 60 CHAPTER V. Offensive Torpedo Warfare--Drifting Torpedoes--Towing Torpedoes--Locomotive Torpedoes--Spar Torpedoes--General Remarks on Offensive Torpedoes 115 CHAPTER VI. Torpedo Vessels and Boats--The _Uhlan_--The _Alarm_--The _Destroyer_--Thornycroft's Torpedo Boats--Yarrow's Torpedo Boats--Schibau's Torpedo Boats--Herreshoff's Torpedo Boats--Torpedo Boat Attacks--Submarine Boats 158 CHAPTER VII. Torpedo Operations--The Crimean War (1854-56)--The Austro-Italian War (1859)--The American Civil War (1861-65)--The Paraguayan War (1864-68)--The Austrian War (1866)--The Franco-German War (1870-71)--The Russo-Turkish War (1877-78) 187 CHAPTER VIII. On Explosives--Definitions--Experiments--Gunpowder--Picric Powder--Nitro-Glycerine--Dynamite--Gun-cotton--Fulminate of Mercury--Dualin--Lithofracteur--Horsley's Powder--Torpedo Explosive Agents--Torpedo Explosions 204 CHAPTER IX. Torpedo Experiments--Chatham, England, 1865--Austria--Carlscrona, Sweden, 1868--Kiel, Prussia--England, 1874--Copenhagen, Denmark, 1874--Carlscrona, Sweden, 1874-75--Portsmouth, England, 1874-75--Pola, Austria, 1875--Portsmouth, England, 1876--Experiments with Countermines--The Medway, England, 1870--Stokes Bay, England, 1873--Carlscrona, Sweden, 1874 220 CHAPTER X. The Electric Light--The Nordenfelt and Hotchkiss Torpedo Guns--Diving 239 CHAPTER XI. Electricity 265 APPENDIX. McEvoy's Single Main Systems 283 Siemens' Universal Galvanometer Tables 287 Synopsis of the Principal Events that have occurred in connection with the History of the Torpedo 290 Index 297 LIST OF PLATES.