All theories as to the primitive man must be very uncertain. Granting the doctrine of evolution to be true, man must be held to have a common ancestor with the rest of the Primates. But then we do not know what their common ancestor was like. If ever we are to have a distinct conception of him, it can only be after long years of future researches and the laborious accumulation of materials, scarcely the beginning of which now exists. But science has already done something for us. It cannot yet tell us our first ancestor, but it can tell us much of an ancestor very high up in the line of descent. We cannot get the least idea (even upon the full assumption of the theory of evolution) of the first man; but we can get a very tolerable idea of the Paulo-prehistoric man, if I may so say—of man as he existed some short time (as we now reckon shortness), some ten thousand years, before history began. Investigators whose acuteness and diligence can hardly be surpassed—Sir John Lubbock and Mr. Tylor are the chiefs among them—have collected so much and explained so much that they have left a fairly vivid result.