/ UNIVERSITY OF CALIFORNIA PUBLICATIONS 



BULLETIN OF THE DEPARTMENT OF 



GEOLOGY 



Vol. 1 1 , No. 2, pp. 45-234, 4 text-figures, plates 3-24 Issued July 16, 1918 



THE SAN LORENZO SERIES OF 

 MIDDLE CALIFORNIA 



BY 



BRUCE L. CLARK 



UNIVERSITY OF CALIFORNIA PRESS 

 BERKELEY 



