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Show BASIS OP AMERICAN HISTORY [ 1500 ephalic type, ^ he Eskimo, however, are one ; longest- headed races on the earth, and certain both in North and South America are mark-oroad- headed. The custom of deforming the . s of new- born children by artificial pressure S produced some extreme types^ which, howearejr- - cave no biological significance. ^ fAAX****~ // yJ^ The cheek- bones are usually prominent, but withy lateral rather than high projection; in some regional*!* this feature is not evident. The nose is usually?^ large and prominent; it is often aquiline, but in certain groups, particularly among the tribes of the northwest coast, it is short and has a tendency to flatness. The eyes are very dark and usually rather small. In the northwest the oblique eye often appears, and the same tendency is seen in the children of many stocks even when it is not evident in the adult. All these characteristics are fairly general, particularly in North America, but variations sufficient to form recognizable types are not infrequent. - For example, the short, squat Eskimo, with Mongoloid features and light skin, is' strikingly different from the tall, dark, impressive Sioux or Algonkin; and the coarse- faced Indian of Puget Sound is easily distinguished from the more delicately featured native of the southwest. As has been stated above, linguistic characteristics have proven the most trustworthy basis for grouping the vast number of tribes of the northern |