Considered from this point of view, the orthodox scheme of Archæological Ages, which is of comparatively recent origin, leaves much to be desired. If anthropological data have insisted upon one thing more than another, it is that modes of thought, which govern action, were less affected by a change of material from which artifacts (articles made by man) were manufactured than they were by religious ideas and by new means for obtaining the necessary food supply. A profounder change was effected in the habits of early man in Britain by the introduction of the agricultural mode of life, and the beliefs, social customs, &c., connected with it, than could possibly have been effected by the introduction of edged implements of stone, bone, or metal. As a substitute for the Archæological Ages, the writer suggests in this volume a new system, based on habits of life, which may be found useful for historical purposes. In this system the terms "Palæolithic", "Neolithic", &c., are confined to industries. "Neolithic man", "Bronze Age man", "Iron Age man", and other terms of like character may be favoured by some archæologists, but they mean little or nothing to most anatomists, who detect different racial types in a single "Age". A history of ancient man cannot ignore one set of scientists to pleasure another. Several chapters are devoted to the religious beliefs and customs of our ancestors, and it is shown that there is available for study in this connection a mass of evidence which the archæological agnostics are too prone to ignore. The problem of the megalithic monuments must evidently be reconsidered in the light of the fuller anthropological data now available. Indeed, it would appear that a firmer basis than that afforded by "crude evolutionary ideas" must be found for British archæology as a whole. The evidence of surviving beliefs and customs, of Celtic philology and literature, of early Christian writings, and of recent discoveries in Spain, Mesopotamia, and Egypt, cannot, to say the least of it, be wholly ignored. In dealing with the race problem, the writer has sifted the available data which throw light on its connection with the history of British culture, and has written as he has written in the hope that the growth of fuller knowledge on the subject will be accompanied by the growth of a deeper sympathy and a deeper sense of kinship than has hitherto prevailed in these islands of ours, which were colonized from time to time by groups of enterprising pioneers, who have left an enduring impress on the national character. The time is past for beginning a history of Britain with the Roman invasion, and for the too-oft-repeated assertion that before the Romans reached Britain our ancestors were isolated and half civilized. DONALD A. MACKENZIE. CONTENTS CHAP. Page I. BRITONS OF THE STONE AGE 1