. Bulletin. Ethnology. 140 BUREAU OF AMERICAN ETHNOLOGY fBrLL. 52 ably hafted much as are the scrapers of the Tehuelche of to-day (fig. 30). A number of blades, flat on one face and in cases handsomely chipped on the other, are especially noteworthy and may have served either as knives or as scrapers. As a rule, one of the edges is more decidedly curved outward than the other and more carefully worked, as seen in the illustrations (fig. 31). These wide blades (see pi. 14), which appear to occur throughout the pampas region and down to southern Patagonia (Hatcher collection), grade into narrowe
. Bulletin. Ethnology. 140 BUREAU OF AMERICAN ETHNOLOGY fBrLL. 52 ably hafted much as are the scrapers of the Tehuelche of to-day (fig. 30). A number of blades, flat on one face and in cases handsomely chipped on the other, are especially noteworthy and may have served either as knives or as scrapers. As a rule, one of the edges is more decidedly curved outward than the other and more carefully worked, as seen in the illustrations (fig. 31). These wide blades (see pi. 14), which appear to occur throughout the pampas region and down to southern Patagonia (Hatcher collection), grade into narrower plano-convex forms, the chipped face being decidedly arched or ridged (fig. 32, a), and these pass into spikelike forms (fig. 32, h), which may in cases be rude or abortive projectile points. However, all of these could have served as scrapers while the more slender forms could have been used as drills. It is a noteworthy fact that the entire series of white quartzite artifacts, up- ward of 400 in number, contains only a dozen specimens chipped on both faces. Only two of the dark-pebble artifacts out of many hundreds of specimens are thus chipped. The dissimilarities be- tween the white quartzite and the coast- pebble work referred to above may be interpreted by some as indicating differ- ences in the people concerned, or widely separated periods of occupation, yet it should not be forgotten that the form and nature of the two kinds of raw ma- terial are so unlike as to account for somewhat marked dissimilarities, both in processes and in forms made, even if utilized by the same people at the same Fig. 30. a, Hafted Tehuelche scraper of duck-bill type, made of green bottle glass, (i actual size.) Hatcher col- lection (southern Patagonia). 5, The scraper removed from the handle for comparison with the ancient types. The strong curve was imposed by the curve of the glass fragment. DOMESTIC UTENSILS Evidences of more or less sedentary occupancy of the coastal region are
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