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POPULAR SCIENCE MONTHLY. 



painting, as compared to that of the Shoshone, is the predilection for 

 two right-angled triangles standing on the same line, their right 

 angles facing each other— a motive of common occurrence all over the 

 southern part of the Plains and in the southwestern territories; while 

 the Shoshone generally place these triangles with facing acute angles. 



Arapaho. Shoshone. 



Fig. 4. Painted Rawhide Bags. (After A. L. Kroeber and H. H. St. Clair.) 



A detailed study of the art brings out many minor differences of this 

 sort, although the general type is very uniform. 



Certain types of designs are so much alike that they might belong 

 to one tribe as well as to another. A series of moccasins of the Shoshone, 

 Sioux and Arapaho (Fig. 5) will serve as a good example. The 

 characteristic forms of all of these are a cross on the uppers, con- 



