NO. 10 NEBRASKA ARCHEOLOGY STRONG 153 



Two hammerstones were recovered; one of hard stone (pi. 17, 

 fig. I, i) has three faces used for polishing and two battered ends. 

 There are two ground-out depressions on the sides, evidently for 

 grasping. The greatest length of this artifact is 90 mm. The other 

 hammerstone is about half as long; it is rather egg-shaped and con- 

 siderably battered on the larger end. 



No celts or axes, either polished or chipped, were found in this 

 house. Four pieces of slaked or heat-decomposed limestone were 

 found. One of these was white, one yellow, and the other two pinkish. 

 The first two were chalky, the latter crumbly. A piece of heat ( ?) 

 disintegrated granite suggests the preparation of tempering material. 



Work in Chipped Stone 



Only two triangular and unnotched arrow points of gray " Ne- 

 hawka " flint were found in house i. One of these, 37 mm long and 

 18 mm wide, is complete; the other is broken. They are of the larger 

 NBa type and therefore accord with larger, cruder, unnotched points 

 described from Lost Creek and Rock Blufifs (see table 3, p. 90). 



There are only two small end scrapers from this house, one com- 

 plete and one broken. The former is 42 mm long by 20 mm wide. 

 They are of yellow jasper and bluish chert and are of the usual plano- 

 convex type. 



Seven irregular flakes of gray flint and yellow jasper have been 

 utilized as side scrapers or simple flake knives. The natural edge 

 of the flake has been slightly retouched, presumably through use. Va- 

 rious other flakes and cores were not saved. 



There is one well-worked diamond-shaped knife of grayish flint or 

 chert. It is very thin, with neatly retouched edges but no bevel ; it 

 measures 102 by 28 mm. Another retouched knife blade of white 

 chert is too irregular for classification in table 2. It is 37 by 18 mm 

 in greatest dimensions and has two edges carefully retouched. 



Work in Bone and Miscellaneous Material 



This consisted solely of two fragments of bison scapula hoes. In 

 both cases the longitudinal ridge had been removed, and in one the 

 broad edge had been sharpened. One crumbly antler of a very large 

 white-tail deer was recovered, but it was unworked. Animal remains 

 as a whole were very scarce in this house, and only those from the 

 bison and white-tail deer were identified. No mollusk shells were 

 noted. Three small baked clay fragments containing the impress of 

 grass and small twigs were recovered. Two are black, the other buff 

 color ; no other wattle-and-daub material was noted in this house. 



