At this point Ethnology must intervene and take up the story of the ages which has thus far been told by her sister Geology. Of what race were the men who after the retreat of the great desolating glaciers came to inhabit this our island? We know that on the one hand they were in a decidedly more advanced state of civilisation than their Palæolithic predecessors. Instead of the rough unshapely pyramids of flint which the Old Stone men used for axes and chisels, Neolithic man went on shaping and polishing his implements till scarcely a fault could be found in the symmetry of their curves. He continued, of course, to hunt and fish as his predecessor had done, but he had also some knowledge of agriculture, he was a breeder of cattle and he knew how to weave cloth and to bake pottery. He no longer lived principally in caves, but sometimes in a fairly constructed house, often, for security, built on the edge of a lake. But, strange to say, with all these great advances towards civilisation, he does not seem to have felt any of that passion for picture-drawing which distinguished his predecessor “the artistic hunter of the Reindeer period”.[2] The physiological characteristics which differentiate Neolithic man from the Celt, his conqueror, will be more fully dwelt on when we come to the next act in the drama; but meanwhile it may be stated that the race was not a tall one. Professor Rolleston says: “I have never found the stature to exceed 5 feet 9 inches in any skeleton from a barrow which was undoubtedly of the ‘stone and bone’ [_i.e._, Neolithic] period”. There is some reason to think that they were dark complexioned with black and curly hair, but it must be admitted that the evidence for this statement is not very conclusive.