Coastal Motor Boats, 144, 145, 149-151 No. 5, 219; App. No. 7, 218, 233; App. No. 16, 217; App. Nos. 21, 25, 26, 219; App. No. 22B, 217; App. No. 23B, 217, 232; App. No. 32, 219, 220; App. Nos. 2, 4, 10, 12, 15, 17A, 19, 20, 24A, 27A, 28A, 29A, 30B, 34A, 35A; App. Collins, Captain Ralph, R.N., 224 Command of the sea, 3, 4 Compasses, damage to--in _Vindictive_, 239, 240 Concentration, 144, 145, 262 Cooke, Lieut. F. T. V., R.M.L.I., 203 Co-operation, value of, 264 Cordner, Major, R.M.L.I., 182 Cory-Wright, Lieut., R.N., 230 Crews, size of, in blockships, 86, 124. _Daffodil_, H.M.S.-- choice of, 79, 80 duties of, 81, 86, 176 fitting out of, 100, 108, 109, 118, 119 previous history, 80 proceedings of, 168, 173, 185, 188, 189, 199, 205, 237, 240 retirement of, 245 Dallas-Brooks, Captain Reginald, R.M.A., 192, 193, 194 Darkness, use of, 37, 38, 132 Davidson, Captain A. P., R.N., 111 Deane, Lieut. Percy T., R.N.V.R., 232, 233 Defence measures, 61, 62 Defences, summary of German, 41 Demolition-- object of, 76, 77, 195, 196 training for, 111, 112 the work of, 189, 205 Depths-- at Blankenberghe, 9 in entrance channel at Zeebrugge, 48, 49, 131 Destroyers, 84, 220, 221 D'Eyncourt, Sir Tennyson, 100 Dickinson, Lieut.-Comdr. C. C., R.N., 111, 205 Diversions, 59, 60, 61, 196, 208, 279 practibility of using, 61 Douglas, Captain H. P., R.N., 90 _n._ Dover-- the return to, 243, 244 the reception at, 244 Dover Patrol-- memorials, 15 morale, 96, 97 work of, 13, 14, 15, 97, 98 Dover Straits, difficulty of closing, 13, 14 Dunkerque, 13 Eagles, Major C. E. E., R.M.L.I., 208 Eastlake, Lieut. A. L., attached R.E., 186, 187 Edwards, Commander, R.N.V.R., 182 Elliot, Lieut.-Col. Bertram N., R.M.L.I., 111, 112, 128, 182 Endurance of German submarines, 4, 5 _Erebus_, H.M.S., 174; App. _Faulknor_, H.M.S.; App. Finch, Sergeant, R.M.L.I., 192 Flame-throwers in _Vindictive_, 115, 186, 187 Flanders Coast-- description of, 6, 7, 8, 22, 24, 25 value to Germany, 5-7, 10-12 Fog, effect on attackers, 60, 175 effect on defence, 59, 175 Fogs, artificial, 59, 60 Franks, Lieut. Ivor B., R.N., 110 French motor launches Nos. 1, 2, 33, 34; App. French Torpedo Boats Nos. 1, 2, 3, 34; App. Fuel, 4 Function of the Navy, 3 Gas, poison, 60 Geddes, Sir Eric, 157 _General Craufurd_, H.M.S.; App. Geographical situation, 6, 7 German bases in Flanders, 6, 10, 29 German craft based on Flanders, 6 German High Seas Fleet, 3, 4, 19, 21, 94, 95 German morale before the attack, 96, 97, 104 German morale after the attack, 255-257 German reports of the attack, 250, 251 German submarines, 4, 5, 11, 12, 13, 14, 16 Gibbs, Commander Valentine F., R.N., 185, 207, 208 Godsal, Commander A. E., R.N., 42, 246, 247 Goeben battery, 204 Gore-Langton, Lieut-Commander Hubert E., R.N., 220, 223 Grand Fleet-- duties of, 94, 95 work of, 102, 103 Groynes, 7, 24, 25