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312 however, which have the edge worn away, not at the circular end but along the edge towards the butt. In this case also they appear to have been employed for scraping, but the evidence as to the character of the substance scraped is not so distinct. It is, however, probable that in the fashioning of perforated axes and other implements, made of greenstone and other rocks not purely silicious, some scraping as well as grinding tools may have been employed, and possibly the wear of the edge of some of these tools may be due to such a cause. Even among the cave-dwellers of the Dordogne we find scrapers bearing similar marks of attrition, and we also know that flint flakes were used for scraping the hard hæmatitic iron ore, to produce the red pigment—the paint with which the men of those times seem to have adorned themselves.

It will of course be urged that it is, after all, only a small proportion of these implements which bear these unmistakeable marks of wear upon them. It must, however, be remembered, that to produce much abrasion of the edge of an instrument made of so hard a material as flint, an enormous amount of wear against so soft a substance as hide would be necessary. It is indeed possible that the edge would remain for years comparatively unworn were the substance to be scraped perfectly free from grit and dirt. If we find identically the same forms of instruments, both worn and unworn, there is a fair presumption that both were intended for the same purpose, though the one, from accidental causes, has escaped the wear and tear visible on the other.

There are, however, circumstances which in this case point to an almost similar form having served two totally distinct purposes; for besides those showing the marks of use already described, we find some of these instruments with the edge battered and bruised to such an extent that it can hardly have been the result of scraping in the ordinary sense of the word.

To account for such a character of wear, there seems no need of going so far afield as among the Eskimos, or any other semi- civilized or savage people, to seek for analogies on which to base a conclusion—how far satisfactory it must be left to others to judge. Among the primary necessities of man (who has been defined as a cooking animal) is that of fire. It is no doubt a question difficult of solution whether our primitive predecessors were acquainted with any more ready means of producing it than