28 PRIMITIVE ART 
Painted decorations are much rarer among these tribes than 
among those of the Great Plains. In place of the hide bags, 
which are so common among all the Prairie tribes, hide trunks 
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are used which are painted with patterns similar to those de- 
scribed before. Probably these hide trunks are modern forms of 
ancient bark boxes. 
It is interesting to note that in the modern woven bead- 
work of these tribes the realistic flower designs which have been 
in vogue for a considerable period tend to assume geometrical 
shapes. The series of beaded belts exhibited in Case 28 / brings 
out clearly the fact that the leaves and fruits tend to assume 
the forms of diamonds, while the flowers tend to develop in the 
direction of crosses. The two beaded belts, illustrated above, 
show types of conventionalization of modern flower designs. 
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