Professor Fessenden Receiving a Message Sent Through Several Miles of Sea-water by His “Oscillator” 121 Side-elevation of a Modern Submarine 127 One Type of Safety-jacket 131 The _Vulcan_ Salvaging the _U-3_ 134 Fulton’s Anchored Torpedoes 140 Sinking of the U. S. S. _Tecumseh_, by a Confederate Mine, in Mobile Bay 143 A Confederate “Keg-torpedo” 144 First Warship Destroyed by a Mine 145 A Confederate “Buoyant Torpedo” or Contact-mine 146 Modern Contact-mine 150 U. S. Mine-planter _San Francisco_ 153 English Submarine Rescuing English Sailors 157 Engagement Between the _Birmingham_ and the _U-15_ 159 Sinking of the _Aboukir_, _Cressy_, and _Hogue_ 163 Tiny Target Afforded by Periscopes in Rough Weather 167 Photograph of a Submarine, Twenty Feet Below the Surface, Taken from the Aeroplane, Whose Shadow Is Shown in the Picture 173 German Submarine Pursuing English Merchantman 182 British Submarine, Showing One Type of Disappearing Deck-gun Now in Use 190 THE STORY OF THE SUBMARINE CHAPTER I IN THE BEGINNING If you had been in London in the year 1624, and had gone to the theater to see “The Staple of News,” a new and very dull comedy by Shakespeare’s friend Ben Jonson, you would have heard, in act III, scene i, the following dialogue about submarines: THOMAS They write hear one Cornelius’ son Hath made the Hollanders an invisible eel To swim the haven at Dunkirk and sink all The shipping there. PENNYBOY But how is’t done? GRABAL I’ll show you, sir, It is an automa, runs under water With a snug nose, and has a nimble tail Made like an auger, with which tail she wriggles Betwixt the costs of a ship and sinks it straight. PENNYBOY Whence have you this news? FITTON From a right hand I assure you. The eel-boats here, that lie before Queen-hythe Came out of Holland. PENNYBOY A most brave device To murder their flat bottoms.