A. <r f 



ALLAN HANCOCK PACIFIC EXPEDITIONS 



VOLUME 19 NUMBER 1 



QUANTITATIVE SURVEY OF THE 



BENTHOS OF SAN PEDRO BASIN, 



SOUTHERN CALIFORNIA 



PART I 



PRELIMINARY RESULTS 



(Charts 1-2, Plates 1-7) 



BY 



OLGA HARTMAN 



FEBl5i:55 



THE UNIVERSITY OF SOUTHERN CALIFORNIA PRESS 



LOS ANGELES, CALIFORNIA 



1955 



