Cn bone 
UNIVERSITY OF CALIFORNIA PUBLICATIONS 
IN } 
ZOOLOGY 
Vo}, 18, No. 13, pp. 299-336, plates 12-13, 6 figures in text April 20, 1918 
A QUANTITATIVE ANALYSIS OF THE 
MOLLUSCAN FAUNA OF SAN 
FRANCISCO BAY 
BY 
E. L. PACKARD 
UNIVERSITY OF CALIFORNIA PRESS 
BERKELEY 
