Vol. XI] 



EVERMANN— DIRECTOR'S REPORT FOR 1921 



613 



Grand Totals: 



Total number of classes 250 



Total number of teachers in charge 240 



Total number of students visiting 7186 



The Museum is glad to be of service to the public in this 

 way and it hopes that this service may grow from year to year. 



VISITORS TO THE MUSEUM 



As heretofore and in accordance with established policy, 

 the Museum was open to the public every day in the year. 

 The attendance by months for each year since the Museum 

 was first opened to the public is shown in the following table: 



Month— 1916 1917 1918 1919 1920 1921 



January 23170 25260 17241 27013 25755 



February 22058 23698 17586 23450 25679 



March 31606 26810 27397 25419 28279 



April 32175 23274 25994 32208 24939 



May 26154 26391 28369 37107 25517 



June 32123 29843 32248 36207 29406 



July 37193 31420 48028 52492 43186 



August 24619 31137 43730 53470 39422 



September 16448 1 27866 29847 34007 42013 31458 



October 36933 20629 14743 2 30463 33500 24861 



November 27718 21810 8531 2 25246 19347 18593 



December 15002 21693 19588 21188 21340 15062 



96101 321096 290542 351497 403566 332157 

 FIELD WORK OF THE MUSEUM STAFF 



Within the past year the Museum carried on a number of 

 field investigations, the most important being the 



EXPEDITION TO THE GULF OF CALIFORNIA 



Realizing that the fauna and flora of the numerous islands 

 in the Gulf of California were little known, it was decided to 

 send an expedition to the Gulf early in the spring of 1921. 



The "Silver Gate," a gasoline schooner, 22 tons net, 65 

 feet over all, capable of eight knots, with cruising radius of 

 2,000 miles, crew of five men, was chartered for the purpose. 



1 Attendance from September 22 to 30. 



* Museum closed 29 days on account of the "flu." 



