American first army, transport of, 124 Arctic patrol, 52, 227 -- seas, work in, 193-201 Area of sea covered daily by sweepers, 161 Areas, command of, 23 -- patrol of, 128-131 Armed liners, 51 Armies, transport of, 116 Atlantic patrol, 226-232 Australian first army, transport of, 123 Auxiliary patrol office, 25 BASES and their fleets, 113-115 -- war, 23, 24, 102-115 Battle of Jutland, 248-256 Beatty, Sir David, 249, 255, 256 Blister system on monitors, 178 Blockade, naval, 18 Boarding parties, 201-208, 270 Bombardment of Zeebrugge, 287-293 Bombay, mine-field laid off, 145 Bombs, submarine, 91 Boom-defence ships, 68 -- staff, 111 _Brighton Queen_, H.M.S., 54 _Britannia_, H.M.S., torpedoed, 101 British coast completely mined-in, 145 -- Empire, dangerous position of, 117 CALL of the White Ensign, 31, 33 Camouflaged ships, 73, 95 Canada, officers from, 44, 195 Canadian first army, transport of, 123 Case of mistaken identity, 190-191 Castaways, 238-247 Casualties, naval, in Great War, 27, 256 Casualty, a, 220 Chaplains, naval, 109-110 Christmas Day, 1916, 192-201 Clearing large mine-fields, 161 Coastal motor boats, 62 -- construction of, 62-68 -- method of attack, 65 -- bases of, 65 -- _v._ German destroyers, 66 -- in actions off Zeebrugge and Ostend, 61, 68, 287 Colombo, mine-field laid off, 145 Colonial officers, 44-45 Colonies, aid from, 21 Concentration of British fleet, August, 1914, 17 Convoy, composition of, 118-119 Convoy ships, 115 Convoy system, 116-125 Convoying, difficulties of, 122 Convoys, minesweeping in front of, 121, 162 Co-operation between fleets of sea and air, 279 Cruiser Squadron, the Tenth, 51-52 DAN-BUOYS, 199 Danish derelict, 202-208 Decoy system of attack, 137-138 Deluding patrols, 236 Demobilisation, naval, 28 Depth charge, construction of, 80-84 -- method of use, 80-84 -- attacks with, 81-84, 262 Depth charges, 70, 84 Derelict, a, 201-208 Destruction of a U-C boat, 209, 218 Division of sea into patrol areas, 128-131 Docker battalions, 121 Dominions, aid from, 21 Dover lighted barrage, 183-185 -- naval base, 103 Dover patrols, 286, 295-300 Drafting officers, 110 Drifter units, 54, 55, 114