CONTENTS 



PAGES 



Introduction. Dependence of Marine Biology upon Hydrography and 



Necessity of Quantitative Biological Eesearch, by Ellis L. Michael i-xxiii 



1. Hydrographic, Plankton, and Dredging Records of the Seripps Insti- 



tution for Biological Research of the University of California, 

 1901 to 1912, compiled and arranged under the supervision of 

 W. E. Hitter, by Ellis L. Michael and George F. McEwen; four 

 text-figures and map 1-206 



2. Continuation of Hydrographic, Plankton, and Dredging Records of 



the Seripps Institution for Biological Research of the University 

 of California (1913-1915), compiled and arranged under the 

 supervision of W. E. Ritter, by Ellis L. Michael and George F. 

 McEwen; seven figures in text 207-25-t 



3. Sununary and Interpretation of the Hydrographic Observations made 



by the Seripps Institution for Biological Research of the Univer- 

 sity of California, 1908 to 1915, by George F. McEwen; with 

 plates 1-38 255-356 



Index 357-360 



