1907.] 



CRANDALL— SAN FRANCISCO PENINSULA. 



57 



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Hoi-iionCal scale 

 Vertical scale 



lEGEND 



S_ Serpentine 



S.B, San Bruno Sandstone 



T.H. Telegraph Hill Sandstone 



M. 5,fercea 



U.J. Upper Jasper 



L,J. "Lo-v^zr Jasper 



S.T. Silver Terrace Sandstone 



U. Diorite and Diabase 



Sections of San Francisco Peninsula. 



