Geology . It includes stone chips, broken and rejected material,and various forms of by-products, as well as implements, weapons, ornaments, special function is to avoid the infelicity of using the words implement, weapon,etc., for objects that may never have been used, or even intended for use. THE PLEISTOCENE OR GLACIAL PERIOD. 503 properly regard paleolithic and neolithic merely as stages of earlyart, and not as chronological ages/ or geologic divisions, but theterms have been much used in the latter sense. The relics interpreted as paleoliths consist chiefly of rudely chippedpieces
Geology . It includes stone chips, broken and rejected material,and various forms of by-products, as well as implements, weapons, ornaments, special function is to avoid the infelicity of using the words implement, weapon,etc., for objects that may never have been used, or even intended for use. THE PLEISTOCENE OR GLACIAL PERIOD. 503 properly regard paleolithic and neolithic merely as stages of earlyart, and not as chronological ages/ or geologic divisions, but theterms have been much used in the latter sense. The relics interpreted as paleoliths consist chiefly of rudely chippedpieces of flint, chert, quartz, or quartzite (Fig. 567). With these areassociated other products of early art. The neoliths embrace a widerrange of stone artefacs, which may be briefly typified for our purposeby the familiar well-chipped arrow-points, spear-heads, knives, andscrapers of flint or quartz, and by the ground and polished axes, chisels,pestles, mortars, and other implements of greenstone and similar. Fig. 567.—At the left, a typical paleolith from Kents Cavern, Torquay, England,seen on the face and edge. At the right, a bone pin or bodkin, a broken needle,and a barbed harpoon head, also from Kents Cavern. (After Evans.) tough or workable rock. The ruder class were confidently inter-preted as the work of an earlier and less cultured people, while thebetter class were known to have been the customary implementsand weapons of the natives of the continent when first invaded byEuropeans. Stone hammers have been found in abundance in the ancientcopper mines of the Lake Superior region, and thus the use of stoneand of copper implements is shown to have been contemporaneous; butthis was long after the retreat of the last ice-sheet, and does not espe-cially concern us here, except as it serves to emphasize the contem-poraneity of different forms of art. It is helpful also to note thatthe phase of the stone art designated neolithic was dominant on thecontinent until very recent t
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