NO. 2 SALVAGE PROGRAM, I95O-I95I — COOPER 29 



vessels, but both open bowls and pots with constricted necks are 

 suggested. 



The relationships of this pottery are not readily apparent. Except 

 for the rim sherd from Birdshead Cave, mentioned above, I have not 

 seen sherds or descriptions of sherds which resemble it closely. Col- 

 lections described by Wedel (1951) from sites geographically close 

 to the Tiber Reservoir area, notably a site near Ethridge in Toole 

 County, Mont., seem to differ significantly in surface treatment and 

 decorative technique. One similarity, for whatever it may be worth, 

 is the presence of a series of notches on a carinate portion of the 

 vessel. In the case of the Ethridge specimens, however, this feature 

 apparently is found on the body of the pot, whereas I am of the 

 opinion the Tiber specimen in question is a rim (pi. 5, a, 5). Further- 

 more, the technique of producing the notches appears to be different 

 in the two instances. Rims of somewhat reminiscent form and 

 decorative treatment occur rarely in the collections from the Oldham 

 site, and from other sites on the Missouri River in South Dakota, 

 but otherwise, except for general resemblances in paste and temper- 

 ing, these sherds do not seem to correspond closely with known 

 ceramics from the central and northern Plains. 



Other artifacts from this occupational zone include objects of stone 

 and bone. Chipped artifacts, which are of limited variety, and chip- 

 ping debris consist of jasper, chalcedony, chert, flint, quartzite, and 

 obsidian. Of the 20 projectile points (pi. 3, 1-12, 14) and fragments 

 identifiable as parts of points, 8 are of chert, 6 of obsidian, 2 of flint, 

 2 of jasper, and 2 of chalcedony. End scrapers, on the other hand, 

 are predominantly of jasper. Of the implements of this class or 

 fragments believed to be parts of them, 14 are made of that material, 

 while 3 are of chert, 2 are of flint, i is of chalcedony, and i is of 

 fine-grained quartzite. Points are both side-notched and plain. Of 

 the complete specimens or fragments on which this feature can be 

 determined, 10 are notched and 8 are plain. In general, the former 

 have straight or very slightly concave bases and straight or slightly 

 convex sides. The unnotched points have straight, concave, or convex 

 bases and convex sides. Most of the points are rather skillfully 

 chipped over all, but a few, notably those of obsidian (pi, 3, 7, 8, i4) , 

 are exceedingly crude and most often chipped only at the edges. 

 One of the obsidian points appears to have been reworked (pi, 3, 8) . 

 Complete points range in length from 12 to 36 mm. and in width 

 from 9 to 18 mm. There are no fragments that indicate points 

 appreciably larger than the largest of these. 



Most of the complete or nearly complete end scrapers are triangu- 



