EXPLANATION OF PLATE VTH. 



Scoop-shaped utensil of gray diorite, found in 1864, in auriferous 

 gravel, 16 feet l)elow the surface, near Oregon Bar, North Fork 

 American River, Placer County, Cal. The shape is unusual, although 

 many specimens of somewhat similar character have been found in 

 California. Length, Hi inches; width, 6i inches. This specimen is 

 now in the Museum of Science and Art, Philadelphia, and was kindly 

 forwarded for examination to the National Museum by Dr. Stewart 

 Culin. 



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