Acetylene gas, use of, for salvage, 47, 52
Adams, Lieut.-Comdr. B. F., R.N., 187, 188, 200, 201
Admiralty, Board of, responsibility of, 69
Aerial attack—
  at first attempt, 146, 147  at final attempt, 171
Afridi, H.M.S., App.
Aircraft—
  German in Flanders, 6, 41  utility in defence, 40, 41
Allied lines of communication, 3, 12, 13
Anchoring of Vindictive, 184
Approach, the story of the, 173 ff.
Astronomical conditions, 134
Attack, expected duration of, 132, 134
Attempt—
  the first, 141 ff., 155  the second, 153, 154  the final start, 165
Attentive, H.M.S., App.


Babb, Sub-Lieut, R.N., 230
Bamford, Captain E., R.M.L.I., 203
Barrage firing from coast batteries, 37
Bases, use of advanced, 19
Beatty, Admiral Sir David, 63, 104, 105, 107, 108
Billyard-Leake, Lieut. Edward W., R.N., 226, 231, 234, 235
Blake, Able-Seaman F. E., R.N., 209
Blake, Sub-Lieut. L. R., R.N.R., 218
Blankenberghe,
  buoy, 174, 175, 242  description, 8, 9  German craft at, 11, 12, 190
Blocking—
  alternative methods of, 17, 42, 43  favourable position for, 44  influence of current, 57  previous attempts elsewhere, 54-56, 58  summary of difficulties, 41, 56
Blockships—
  capabilities of, 49, 52, 69, 70  credit due to, 73, 234, 235  difficulty of sinking, 56, 57, 58  preparatory work in, 52, 100  types of, 45-47, 69, 70  See Thetis, Intrepid, Iphigenia
Blockship's crews, disembarkation of surplus, 124, 125, 170, 171
Boddie, Engineer Lieut.-Comdr., R.N., 228
Bombardment—
  by our monitors, 16, 84, 174, 175  previous attempts at, 35, 43, 44
Bonham-Carter, Lieut. Stuart S., R.N., 226, 228, 230, 234, 235
Botha, H.M.S., 91; App.
Bouclier, French destroyer, App.
Bowen, Lieut. G., 225
Bradford, Lieut. George N., R.N., 206, 207
Brilliant, H.M.S., 70, 143, 246; App.
British morale, effect on, 258, 259
Brock, Wing-Commander Frank, R.N.A.S., 98, 115, 116, 153, 187, 200
Bruges, 9, 10, 11, 270
Brussels, merchant steamer, 29
Buckley, Yeoman of Signals John, R.N., 189, 190
Buoys, lack of dependence on, 8, 91, 92
Bury, Engineer Lieut.-Comdr. W. A., R.N., 184, 243


Calais, 13
Cameroon River, German attempt to block, 58
Campbell, Lieut. H. G., R.N., 185, 188, 189, 240, 245
Campbell, Commander V. L. A., R.N., 220
Canal system in Flanders, 9-11
Casualties, British, 253, 254
Cement, use of, in blockships, 52
Chappell, Lieut.-Comdr., R.N.V.R., 224
Chevallier, Sub-Lieut. F. E., R.N., 205
Clerical work, 140
Coast defences, German, 35-38
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
Guerre de Course tactics, 5


Halahan, Captain H. C., R.N., 111, 114, 116, 128, 182, 201
Hardy, Lieut.-Comdr. H. N. M., R.N., 246
Harrison, Lieut.-Comdr. A. L., R.N., 200, 201, 202
Harwich, forces from; App.
Haselfoot, Lieut.-Comdr. F. E. B., R.N., 90 n.
Hawkings, Lieut. Claude E. K., R.N., 206
Heligoland, 19
Helyar, Lieut.-Comdr. Kenneth C., R.N., 220, 222, 223
Henderson, Lieut. Oscar, R.N., 209, 245
Hermione, cutting out of—in 1799, 54, 55
Hewett, Lieutenant Graham S., R.N.V.R., 194
Hilton-Young, Lieut. E., R.N.V.R., 196
Hindustan, H.M.S., 111, 118, 119, 120, 125, 127; App.
History—
  lack of encouragement from, 58  object of studying, 54
Historical analogies, 54-56, 58
Howitzers in Vindictive, 79, 98, 193, 194
Hydrographic Department, 91


Initiative, 89, 149, 150
Instructions, the art of writing, 66,67

Intrepid, H.M.S., 70, 143, 170, 228, 229-231, 232, 234; App.
Iphigenia, H.M.S., 70, 143, 171, 228,
  229, 231, 232, 234, 241, 243-251; App.
Iris, H.M.S.—
  choice of, 79, 80  duties of, 81, 86  fitting out of, 100, 108, 109, 118, 119  proceedings of, 168, 173, 185, 205-209  retirement of, 245, 246


Jakobynessen battery, 37
Jellicoe, Admiral Sir John, R.N., 17, 157


Kaiser's visit to Zeebrugge, 252
Kaiser Wilhelm battery, 204
Keyes, Vice-Admiral Roger J. B., R.N., 14, 63, 109, 113, 114, 167,
    168, 220, 243, 246, 263, 264, 265, 282
  appreciation of, 63, 68, 69  connection with planning, 67, 68, 82  postponement decision, 147, 148


Lamplough, Lieut. C. R. W., R.M.L.I., 203
Leadership, 264, 265
Lestin, French destroyer; App.
Lightfoot, H.M.S.; App.
Lines of communication, 3, 12, 13, 96
Lingfield, H.M.S.; App.
Littleton, Lieut. H. A., R.N.V.R., 232, 233
Lord Clive, H.M.S.; App.
Lock gate, 10, 22, 28, 43, 44, 49
Losses, British material, 253, 254


MacVean, Lieut. D. E. J., R.N.V.R., 217
Mails, precautions, 120
Manly, H.M.S.; App.
Mansfield, H.M.S., 224; App.
Marine Artillery, 104, 112, 113, 126, 192-194  Infantry, 104, 111, 112, 126
Marines, embarkation of, 118, 119
Marshal Soult, H.M.S.; App.
Martinique, attack on—in 1794, 54, 55
Mastiff, H.M.S.; App.
Matchless, H.M.S.; App.
Material results obtained, 249-253.

Matériel, relation to personnel, 181
McCutcheon, Staff Surgeon, R.N., 197, 198
McKenzie, Able Seaman, 202
Medical, 197, 198
Meikle, Engineer Sub-Lieut., R.N., 230
Melpomene, H.M.S., 224; App.
Mentor, H.M.S.; App.
Mercantile Marine, appreciation, 143, 144
Merrimac, U.S. steamer, 54, 58, 88
Meteorological conditions, 131
Military training, 112, 113
Minefields, German, 38, 39
Mines—
  effect of, 93, 94, 173  precautions against, 94
Mine-sweepers, 6, 39, 94
Monitors, 36, 146, 174
Monitors: M. 21, M. 24, M. 26; App.
Moon, state of, 134
Moorsom, H.M.S., 224, 242, 243; App.
Moral results obtained, 255-260
Morale, 96, 97
Morris, H.M.S., 224; App.
Motor launches, 144, 225, 240
Motor launches:—
  No. 110, 225; App.  No. 128, 224; App.  No. 282, 230, 231, 232, 233, 234; App.  No. 308, 225; App.  No. 424, 224; App.  No. 526, 229, 232, 233; App.  No. 558, 224, 226; App.  Nos. 11, 16, 17, 22, 23, 30, 60, 79,
    105, 121, 223, 239, 241, 249, 252,
    254, 258, 262, 272, 274, 276, 279,
    280, 283, 314, 345, 397, 416, 420,
    422, 429, 448, 512, 513, 525, 532,
    533, 538, 549, 551, 552, 555, 556,
    557, 560, 561, 562; App.
Myngs, H.M.S., 224; App.


Napoleon's maxim, 95
Navigation, coastal, 56, 57  difficulties and dangers, 7, 8, 40, 41  importance of accuracy, 90 ff., 178  open sea, 56
Nelson, Lord, 55, 147, 148
Newbold, Lieut. Aubrey C., R.N., 210, 214
Nieuport, 6, 7, 8
North Star, H.M.S., 220, 221, 222, 223;