Ship, question of balance, 111. Ship salved by blasting away rocks, 183. Ship salved five times, 10. Ship surgery, 181. Ship torpedoed three times, 101. Shipbreakers buy wreck of _Gladiator_, 167. Shipbreakers buy wreck of _Montagu_, 172. Shipping, high cost in war, 113. Shipping slump, 113. Ships, how destroyed, 3. Ships, increase in tonnage, 114. Ships insured by British Government, 96. Ships salved by Admiralty Salvage Section, 111. Ships salved by air bags, 206. Ships salved in Great War, their value, 111. Ships seized from Germany, 114. Ships sunk at sight during war, 96. Ships, wonder of, 4. Shot-rope, 37. Shutter Rock, 171. Siebe, Gorman & Company help to save Winchester Cathedral, 213. Siebe, Gorman & Co. Ltd., 41. Siebe invents diving dress, 41. Sieve, giant, 30. Sifting seabed, 30. _Silurus_, cost of salvage operations, 194. _Silurus_, plans to salve, 189. _Silurus_, wreck of, 187–194. Silver bars recovered, 48. Sinking of K.13, 132. _Skyro_, wreck of, 45–47. Slings, U-boat carried 40 miles in, 158. Slump in shipping, 113. Smoke helmet, 42. Soldier patches ship with concrete, 180. Solent, 165. Spain loses Cuba, 214. Spanish-American War, cause of, 214. Spanish doubloons, 18. Spanish galleon, 15. Spanish galleon destroyed, 20. Spontaneous combustion and _Maine_ disaster, 216. Spy and burning troopship, 163. Stag Rocks, _Seuvic_ wrecked on, 182. Standard patch, 100. State as underwriters, 96. Steel cable, giant, 191. Steel cables, breaking strains of, 192. Steel cables snapped by gale, 154. Steel plates, cutting under sea, 169. Steel tombs, submarines as, 118. Storms defeat salvage, 5, 7. Storms snap steel cables, 7. Storms, strength of, 8. Stranded ships, towing off, 186, 187. Stranding of _Norton_, 183. Submarine, an American adventure, 149. Submarine campaign, 96. Submarine carried 40 miles, 158. Submarine carried over sandbar, 129. Submarine commander’s dilemma, 150. Submarine, dropping a, 129. Submarine F.4, disaster to, 152. Submarine flash lamp and K.13, 137. Submarine lamps, 157. Submarine menace and British Salvage Section, 97. Submarine, mine-laying, 121. Submarine O.5, sinks in 40 feet of water, 151. Submarine S.5, her strange accident, 141. Submarine scenery, 204. Submarine sinks oil tanker, 163. Submarine tragedies seen by divers, 118. Submarine with folding funnels, 131. Submarines as steel tombs, 118. Submarines, netting, 116. Submarines, wonderful escapes from sunken, 139, 145, 146–152. Submerged gun-turrets, detaching, 87. Survivors of _Belgian Prince_ atrocity, 120. Survivors of K.13, 139. Taranto, 79, 84. Taranto dry dock, depth of, 87. Telephone, submarine, 40. Telephone that floats, 142. Temperature of 6700 degrees under water, 169. Texel, 22.