This book is in one sense a companion of my Caesar’s Conquest of Gaul; and much that was written in the preface of that volume is equally applicable here. The last three chapters of Part I, and the later articles in Part II, are intended to do for Britain what I formerly tried to do for Gaul; but whereas the main object was then to illustrate the conquest, and the opening chapter was merely introductory, my aim in these pages has been to tell the story of man’s life in our island from the earliest times in detail. What has been called ‘prehistory’ cannot be written without knowledge of archaeology; but from the historical standpoint archaeological details must be handled, not for their own sake, but only in so far as they illustrate the development of culture. The two books are constructed on the same principle: in this, as in the other, the second part is devoted to questions which could not properly be discussed in narrative or quasi-narrative chapters, though I am encouraged by the judgement of expert critics, British, American, and Continental, of Caesar’s Conquest of Gaul, to hope that general readers who are interested in these matters may not find the articles which deal with them tedious. Those on Stonehenge, Ictis, and the ethnology of Britain, although they controvert certain opinions which are commonly accepted, will, I hope, tend to place facts in their true light. Two articles deal with well-worn themes,—the identity of the Portus Itius, and the place of Caesar’s landing in Britain. These problems have been pronounced by eminent scholars, iv including Mommsen, to be insoluble; nevertheless, I venture to affirm that in both cases the inquiry has now been worked out to demonstration. Critics who may be disposed to regard this claim as arrogant or frivolous will, I trust, read the articles through before passing judgement upon them. The questions would have been settled long ago if any competent writer had bestowed upon them as much care as has been expended in investigating Hannibal’s passage over the Alps.

Books and articles on various branches of the study of ancient Britain are practically innumerable; no other book, intended to treat it comprehensively from the beginning to the Roman invasion of A.D. 43, has, so far as I know, yet appeared.

I wish to express my gratitude to all who have in any way helped me. I am indebted to Sir John Evans for figures 1-6, 8-11, 14, 15, and 18-29, as well as for an opinion, most kindly given, in regard to certain coins which are not mentioned in his Coins of the Ancient Britons; to the Director of the British Museum for figures 30, 36-9, 41, 43, and 44; to the Society of Antiquaries for figures 7, 13, 16, 31, 35, and 40; to the Delegates of the Oxford University Press for figures 12 and 32-4; to Dr. Joseph Anderson for figure 17; and to Canon Greenwell for a proof of a valuable and interesting article—‘Early Iron Age Burials in Yorkshire’—which, I believe, is to appear in Archaeologia. Captain Tizard, R.N., F.R.S., kindly answered various questions which I asked him about tidal currents. Mr. E. J. Webb, Sir George Darwin, Professor Postgate, Professor Haverfield, Mr. Clement Reid, F.R.S., Mr. George Barrow, F.G.S., Captain J. Iron, Commander Richmond, R.N., and Commander Boxer, R.N., gave me information, which, in every instance, will be found, acknowledged either in footnotes of Part I, or in Part II, on various points of detail. v

It is vain to plead that work would have been better if circumstances had been more favourable. But if any indulgence may be accorded to an author who, except on holidays, can only find leisure for writing or research after he has fulfilled the duties of an exacting profession, and who, in order to gain time, has worked steadily throughout his vacations for nearly thirty years, I am entitled to it.