Pliny, Hist. Nat., XXII. 1.
332
De Bello Gallico, V. 14.
333
Diodorus Siculus, V. 22.
334
Diodorus Siculus, V. 22. – Strabo, IV., p. 200.
335
De Bello Gallico, V. 12.
336
De Bello Gallico, VI. 13.
337
Agricola, 11.
338
Strabo, IV., p. 199.
339
De Bello Gallico, V. 12.
340
Diodorus Siculus, V. 22.
341
Pliny, Hist. Nat., IV. 30, § 16.
342
Tacitus, Agricola, 36.
343
De Bello Gallico, V. 16.
344
Tacitus, Agricola, 12.
345
Frontinus, Stratagm., II. 3, 18. – Diodorus Siculus, V. 21. – Strabo, IV., p. 200.
346
The account on page 213 confirms this interpretation, which is conformable to that of General Gœler.
347
De Bello Gallico, IV. 32 and 33.
348
Strabo, IV., p. 200.
349
Strabo, IV., p. 201.
350
From what will be seen further on, each transport ship, on its return, contained 150 men. Eighty ships could thus transport 12,000 men, but since, reduced to sixty-eight, they were enough to carry back the whole army to the continent, they can only have carried 10,200 men, which was probably the effective force of the two legions. The eighteen ships appropriated to the cavalry might transport 450 horses, at the rate of twenty-five horses each ship.
351
The port of Dover extended formerly from the site of the present town, between the cliffs which border the valley of the Dour or of Charlton. (See Plate 17.) Indeed, from the facts furnished by ancient authors, and a geological examination of the ground, it appears certain that once the sea penetrated into the land, and formed a creek which occupied nearly the whole of the valley of Charlton. The words of Cæsar are just justified: “Cujus loci hæc erat natura, atque ita montibus angustis mare continebatur, uti ex locis superioribus in littus telum adjici posset.” (IV. 23.)
The proofs of the above assertion result from several facts related in different notices on the town of Dover. It is there said that in 1784 Sir Thomas Hyde Page caused a shaft to be sunk at a hundred yards from the shore, to ascertain the depth of the basin at a remote period; it proved that the ancient bed of the sea had been formerly thirty English feet below the present level of the high tide. In 1826, in sinking a well at a place called Dolphin Lane, they found, at a depth of twenty-one feet, a bed of mud resembling that of the present port, mixed with the bones of animals and fragments of leaves and roots. Similar detritus have been discovered in several parts of the valley. An ancient chronicler, named Darell, relates that “Wilbred, King of Kent, built in 700 the church of St. Martin, the ruins of which are still visible near the market-place, on the spot where formerly ships cast anchor.”
The town built under the Emperors Adrian and Septimus Severus occupied a part of the port, which had already been covered with sand; yet the sea still entered a considerable distance inland. (See Plate 17.)
It would appear to have been about the year 950 that the old port was entirely blocked up with the maritime and fluvial alluvium which have been increasing till our day, and which at different periods have rendered it necessary to construct the dykes and quays which have given the port its present form.
352
“Constat enim aditus insulæ esse munitos mirificis molibus.” (Cicero, Epist. ad Atticum, IV. 16.)
353
Dio Cassius, XXXIX. 51.
354
The Emperor Julian (p. 70, edit. Lasius) makes Cæsar say that he had been the first to leap down from the ship.