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Show CHAPTER XV INDIAN INDUSTRIAL LIFE AND WARFARE .( 1500- 1900) TxIE Indian's acquaintance with metal was 1 little more than accidental, and his smithery was usually a rude beating out into the desired shape, with designs applied by etching or hammer-ing. NJn Mexico, ias was noted in a previous chapter,] yi the art of casting metals had been attained, but it was practically unknownin the northern parts of the continentN Copper and gold were most commonly used, as the two metals most adaptable to the primitive technique of the savage. NThrown back upon stone and wood as the chief sources of raw material, it is not strange that there developed that infinite variety of weapons, tools, and vessels of those substances which archaeological research has brought to light. Where sttfne and wd& d were ill adapted, bone, antler, shell, and other durable materials were made to do service in the arts. For certain necessaries, however, neither stone, wood, nor horn will answer. Clothing must be provided, and some workable substance was called for 227 |