M.3H 



rio. 7 



University of California Publications in Geological Sciences 

 Editors (Los Angeles): W. C. Putnam, Donald Carlisle, E. L. Winterer 



Volume 34, No. 2, pp. 91-160, plates 13-23, 2 figures in text, 1 map in pocket 



Submitted by editors January 7, 1958 



Issued December 23, 1958 



Price, $2.00 



University of California Press 



Berkeley and Los Angeles 



California 



Cambridge University Press 

 London, Encland 



PRINTED IN THE UNITED STATES OF AMERICA 



