

GEOLOGICAL SURVEY OF CALIFORNIA, 



J. p. WHITNEY, State GKOLn(;i.sT. 



CAT7AL0GU E iWj„„ 



OK Till-: * 



m^ERTEBRATE lU^SlLS 



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WESTERN SLOPE OF THE UNITED STATES. 



F^AUT II. 



BY J. G. COOPER. M 



SAN FKANCISCO: BACON & COMPANY 

 18 7 1. 



