ANNOUNCEMENT OF MEETINGS OF THE ACADEMY AND 



AFFILIATED SOCIETIES 1 



LECTURES ON HEREDITY 



A series of lectures on Heredity will be presented before the Wash- 

 ington Academy cf Sciences during March and April, 1917. The first 

 of these addresses entitled Observed changes in hereditary characters in 

 relation to evolution, by Prof. H. S. Jennings, Johns Hopkins University, 

 Baltimore, will be presented on Thursday evening, March 15th, at 

 8.15 o'clock, in the Assembly Room of the Cosmos Club, H Street and 

 Madison Place. 



Other addresses in the series will be given on the following tentative 

 dates : 



March 29: Dr. Oscar Riddle: The control of the sex ratio. 

 April 13: Prof. W. E. Castle: The role of selection in heredity. 



April 26: Dr. Alexander Graham Bell: The bearing of heredity on human 

 affairs. 



Notices will be sent out before each meeting 



Monday, March 19: The Anthropological Society, at the Public 

 Library, at 8 p.m. Program : 



Fay-Cooper Cole, Assistant Curator in the department of anthropology at the 

 Field Museum of Natural History: The pagan tribes of the Philippines. 

 (Illustrated.) 



Saturday, March 24: The Biological Society, at the Cosmos Club, at 

 8 p.m. 



Wednesday, March 28 : The Geological Society, at the Cosmos Club, 

 at 8 p.m. 



Saturday, March 31 : The Philosophical Society, at the Cosmos Club, 

 at 8.15 p.m. Program: 



J. Bates and F. P. Phelps : Rotation of the plane of polarization by quartz and 

 iron at high temperatures . 30 minutes. 



F. E. Wright: Application of polar ludy of < 



20 minu 



P. V . Wells: A standard of turbidity, lo minutes. 



Tu April 3: The Botanical Society, Cosmos Club, at 



8 p.m. 



1 The programs of the meetings of the affiliated societies will appear on this page if sent to the editors 

 by the thirteenth and twenty-seventh day of each month. 



