190 PICTURE-WRITING OF THE AMERICAN INDIANS, 
Third type. Cups surrounded by a series of concentric complete rings.—In this com- 
plete annular form the central cup is generally more deeply cut than the surround- 
ing rings, but not always. 
Fourth type. Cups surrounded by a series of concentric, but incomplete rings having a 
straight radial grvove.—This type constitutes perhaps the most common form of the 
TYPE 2: 
TYPE |. TYPE 3. 
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TYPE 4. TYPE 5. 
TYPE 6: IDdaE Ze 
Fic. 147.—Types of cup sculptures. 
circular carvings. The rings generally touch the radial line at both extremities, 
but sometimes they terminate on each side of it without touching it. The radial 
groove occasionally extends considerably beyond the outer circle, and in most cases 
