Plate 7. 



Fig. 1. 



"Wrought flake of gray and black striped jasper, one-half the natural 

 size. One of many similar specimens found by Professor Hayden's 

 Ijarty, on Henry's Fork of Green Kiver, TV'joming, during the 

 geological exploration of 1870. 



Fig. 2. 



Implement of pinkish quartzite, made from a bowlder of the drift from the 

 TJintahs. Two views ; one-lialf size. From the plain near Dry Creek, 

 about eight miles from Fort Bridger. 



