STONEHENGE 468 THE CASSITERIDES, ICTIS, AND THE BRITISH TRADE IN TIN.-- I. The Cassiterides 483 II. Ictis and the British trade in tin 499 DENE-HOLES 515 THE COAST BETWEEN CALAIS AND THE SOMME IN THE TIME OF CAESAR 517 THE CONFIGURATION OF THE COAST OF KENT IN THE TIME OF CAESAR 518 I. Between Ramsgate and Sandown Castle 519 II. Between Sandown Castle and Walmer Castle 521 III. The Goodwin Sands 525 IV. The South Foreland and the Dover Cliffs 528 V. Dover Harbour 530 VI. Between Dover and Sandgate 531 VII. Romney Marsh 532 PORTUS ITIUS.-- I. Review of the controversy 552 II. The data furnished by Caesar, Strabo, and Ptolemy 554 III. Caesar sailed from the Portus Itius on both his expeditions 556 IV. The value of Caesar’s estimate of the distance between the Portus Itius and Britain 557 V. The estuary of the Somme 558 VI. Ambleteuse 563 VII. Calais 565 VIII. Wissant 565 IX. Boulogne 585 THE PLACE OF CAESAR’S LANDING IN BRITAIN.-- I. Introduction 595 II. The data furnished by Caesar and other ancient writers 596 III. The day on which Caesar landed in 55 B.C. 600 IV. Did Caesar land at the same place in both his expeditions? 603 V. The various theories about Caesar’s place of landing 604 VI. The question of the tides 605 VII. The theory that Caesar landed at Pevensey 611 VIII. The theory that Caesar landed at Lympne or Hythe 622 IX. The theory that Caesar landed at Hurst 638 X. The theory that Caesar landed between Hurst and Kennardington 639 XI. The theory that Caesar landed opposite Walmer and Deal 644 XII. The theory that Caesar landed at Richborough or Sandwich 662 THE CREDIBILITY OF CAESAR’S NARRATIVE OF HIS INVASIONS OF BRITAIN 666 THE DISEMBARKATION OF THE ROMANS IN 55 B.C. 673