QUANTITATIVE STUDIES ON INSHORE 



MARINE DIATOMS AND DINOFLAGELLATES 



OF SOUTHERN CALIFORNIA IN 1920 



WIXFKED EMORY ALLEN 



INTRODUCTION 



This paper is the second of a series of papers dealing with this 

 subject, the first of which covered the work done in the last four 

 months of 1919 at the pier belonging to the Scripps Institution for 

 Biological Research of the University of California at La Jolla (Allen, 

 1922). The present report covers material similar to that described 

 in the first paper. This material was taken by the same methods and 

 equipment and handled and studied in a similar way. The only 

 difference is that in this series a part of the material was obtained 

 from another station (Pt. Hueneme) at the eastern end of Santa 

 Barbara Channel about one hundred miles northwest from La Jolla, 

 located in latitude 34° 08' 38" North and longitude 119° 12' 40" 

 West; also, this material was taken by a pier employee (Mr. B. E. 

 Garner) on six mornings of each week as he found opportunity in 

 connection with his regular employment. 



Since the work of this year was carried on in the same way as that 

 described in the above mentioned report for 1919, it is assumed that 

 preliminary discussion is unnecessary and that we may properly 

 enter at once upon direct consideration of the material. 



