Vol. XLII. June, 1922. No. 6. 



BIOLOGICAL BULLETIN 



THE MARINE BIOLOGICAL LABORATORY. 



TWENTY-FOURTH REPORT, FOR THE YEAR 1921, THIRTY-FOURTH 



YEAR. 



I. TRUSTEES (AS OF AUGUST, 1921) 275 



II. ACT OF INCORPORATION 277 



III. BY-LAWS OF THE CORPORATION 277 



IV. THE TREASURER'S REPORT 279 



V. THE LIBRARIAN'S REPORT 283 



VI. THE DIRECTOR'S REPORT 285 



Statement 285 



1. The Staff 290 



2. Investigators and Students 293 



3. Tabular View of Attendance 301 



4. Subscribing and Cooperating Institutions 302 



5. Evening Lectures 303 



6. The Organization and Policies of the Marine Biological Labora- 



tory 304 



7. Members of the Corporation 310 



I. TRUSTEES, AUGUST 9, 1921. 



EX OFFICIO. 



FRANK R. LILLIE, Director, The University of Chicago. 

 OILMAN A. DREW, Assistant Director, Marine Biological Laboratory. 

 D. BLAKELY, HOAR, Treasurer, 161 Devonshire Street, Boston, Mass. 

 GARY N. CALKINS, Clerk of the Corporation, Columbia University. 



TO SERVE UNTIL 1925. 



C. R. CRANE, New York, N. Y., Pres-ident of the Corporation. 

 I. F. LEWIS, University of Virginia. 



275 



