The history of this people during the time when they were the dominant power in Mid-Europe has to be divined or reconstructed from scattered references, and from accounts of episodes in their dealings with Greece and Rome, very much as the figure of a primæval monster is reconstructed by the zoologist from a few fossilised bones. No chronicles of their own have come down to us, no architectural remains have survived; a few coins, and a few ornaments and weapons in bronze decorated with enamel or with subtle and beautiful designs in chased or repoussé work—these, and the names which often cling in strangely altered forms to the places where they dwelt, from the Euxine to the British Islands, are well-nigh all the visible traces which this once mighty power has left us of its civilisation and dominion. Yet from these, and from the accounts of classical writers, much can be deduced with certainty, and much more can be conjectured with a very fair measure of probability. The great Celtic scholar whose loss we have recently had to deplore, M. d’Arbois de Jubainville, has, on the available data, drawn a convincing outline of Celtic history for the period prior to their emergence into full historical light with the conquests of Cæsar,(3) and it is this outline of which the main features are reproduced here. *The True Celtic Race* To begin with, we must dismiss the idea that Celtica was ever inhabited by a single pure and homogeneous race. The true Celts, if we accept on this point the carefully studied and elaborately argued conclusion of Dr. T. Rice Holmes,(4) supported by the unanimous voice of antiquity, were a tall, fair race, warlike and masterful,(5) whose place of origin (as far as we can trace them) was somewhere about the sources of the Danube, and who spread their dominion both by conquest and by peaceful infiltration over Mid-Europe, Gaul, Spain, and the British Islands. They did not exterminate the original prehistoric inhabitants of these regions—palæolithic and neolithic races, dolmen-builders and workers in bronze—but they imposed on them their language, their arts, and their traditions, taking, no doubt, a good deal from them in return, especially, as we shall see, in the important matter of religion. Among these races the true Celts formed an aristocratic and ruling caste. In that capacity they stood, alike in Gaul, in Spain, in Britain, and in Ireland, in the forefront or armed opposition to foreign invasion. They bore the worst brunt of war, of confiscations, and of banishment. They never lacked valour, but they were not strong enough or united enough to prevail, and they perished in far greater proportion than the earlier populations whom they had themselves subjugated. But they disappeared also by mingling their blood with these inhabitants, whom they impregnated with many of their own noble and virile qualities. Hence it comes that the characteristics of the peoples called Celtic in the present day, and who