Holy Island, defences of, 188. Honorius, the Emperor, 17, 61. Hull, 101-102. Hull, chain at, 209. Huntcliffe, 70. Hurst Castle, 183, 185. Hythe military canal, 191. Ipswich, 107-108. Jutes, The, 75. King's Lynn, 102-103. Lambard, W., on coast defences of Henry VIII, 159-160. Lancaster Castle, 153-154. Landguard Fort, 180-181. Lisle, Sir George, 112. Liverpool Castle, 154. Lucas, Sir Charles, 112. Lymne, 17, 50-58, 77. Martello Towers, 190-191. Medway Estuary, defences of, 179-180. Mersea, West, 27-28. Navy, origin and province of, 195-204, 216-217. Navy, the English, 80. Navy, "the first line of defence," 216-217. Navy, under Hubert de Burgh, 130, 198-200. Navy, under King Alfred, 80, 196. Norman castles built within Roman defences, 90-91. Norman castles, types of, 89-90. Norman coast castles in England, 87-91, 96. Norman fleet, 87. Norman invasion of England, 86-87. Orford Castle, 108-111. Othona, 25-28. Peak, near Robin Hood Bay, 70. Pevensey, 17, 58-62. Pevensey (mediaeval) Castle, 141. Pharos, at Dover, 45-49. Pharos, at Richborough, 37-38. Pharos, at West Mersea, 26-28. Plymouth, bulwark at, 165. Porchester, 17, 62-64, 67. Portland, bulwark at, 165. Portland Castle, 187-188. Portsmouth, 142-149, 166. Portsmouth, chain at, 145, 208-209. Portsmouth, Tower of, 169. Portus Itius, 5. Portus Lemanus, 17, 50-58, 77. Portus Magnus, 62-64. Prehistoric camps, 3-5. Queenborough Castle, 116-119. Reculver, 12, 17, 19, 28-35. Regulbium, 12, 17, 19, 28-35. Richborough, 17, 35-42. Rochester, 70. Rochester, Anglo-Saxon coins, 77. Roman forts, 12, 16-71. Roman invasion, 5-13. Round, Dr. J. H., 89. Rutupiae, 17, 35-42. Rye, 138, 191. Rye Castle, 166. Saltwood Castle, 133-138. Sandgate Castle, 174-177. Sandown (I. W.) blockhouse, 186. Sandown (Kent) Castle, 160, 171, 174. Sandsfort Castle (Weymouth), 187. Sandwich, 122-127. Sandwich, Anglo-Saxon coins, 77. Sandwich, Anglo-Saxon defences at, 78. Saxon Shore, Count of the, 13-16. Saxon settlement of England, 75-80. Scarborough Castle, 101. Scottish invasions, 99. Shoebury, Danish camp, 81-83. Silchester, 76. Southampton, 149-151. Southampton Castle, 151. South Coast, defences of, 182-191. Southsea Castle, 146, 182-185. Staithes, 70. Straits of Dover, 13. Swale, River, 117. Swanscombe, Danish settlement at, 82. Thames Estuary, defences of, 179-180. Tilbury, bulwark at, 165. Torne Bay, bulwark at, 165. Tynemouth Priory and Castle, 100-101. Upnor Castle, 179-180.