EMERGING TO TAKE BEARINGS 47 BENEATH THE WAVES 53 INTERIOR OF FIRST BRITISH SUBMARINES 65 SUBMARINE OF A. CONSTANTIN 70 “GOUBET II.” 71 M. GOUBET GOING UNDER WATER 72 PROFESSOR TUCK’S SUBMARINE 75 INSIDE THE “GOUBET” 86 GASOLINE ENGINES OF FIRST BRITISH SUBMARINES 87 ARMAMENT AND PERISCOPE OF THE “GOUBET” 91 THE “GOUBET” OUT OF WATER 110 INTERIOR OF A BRITISH SUBMARINE 111 THE SUBMARINE IN ACTION 123 EXIT SUBMARINE (AN ORIGINAL SKETCH BY A. H. BURGOYNE) 143 THE EARLIEST PICTURE OF A SUBMARINE 159 M. BAUER’S “DIABLE MARIN” 167 M. APOSTOLOFF’S PROPOSED SUBMARINE (BY A. H. BURGOYNE) 173 THE “INTELLIGENT WHALE” 175 THE “AQUAPEDE” 179 BUSHNELL’S SUBMARINE 183 BUSHNELL’S SUBMARINE 188 THE “NAUTILUS” 193 THE “DAVID” 207 THE SINKING OF THE “HOUSATONIC” 210 THE “SPUTYEN DUYVIL” 213 INTERIOR OF THE WHITEHEAD TORPEDO 221 THE FIRING OF A TORPEDO 227 A BRITISH DESTROYER 232 “NORDENFELT II.” RUNNING AWASH 237 “NORDENFELT II.” AT CONSTANTINOPLE 242 MR. HOLLAND’S EARLIEST SUBMARINE 262 BOW VIEW OF THE “HOLLAND” 265 STERN VIEW OF THE “HOLLAND” 271 “GYMNOTE” 285 “GUSTAVE ZÉDÉ” 289 “NARVAL” 303 “NARVAL” ON SURFACE 305 “NARVAL” AWASH 307 “PERAL” 315 “ARGONAUT” IN DRY DOCK 321 “ARGONAUT” AWASH 325