REPRINT OF HEREDITY LECTURES 



A series of three public lectures by Prof. H. S. Jennings, Dr. Oscar 

 Riddle, and Prof. W. E. Castle, dealing with the subject of heredity, 

 was given under the auspices of the Washington Academy of Sciences 

 during March and April, 1917. In view of the wide-spread interest 

 in the lectures, and in response to numerous requests, the Academy has 

 reprinted in collected form a limited edition of the lectures as published 

 in the Journal. 



Copies of the brochure, substantially bound in flexible cloth covers, 

 may be purchased of the Treasurer, Mr. William Bowie, Coast and 

 Geodetic Survey, Washington, D. C, at fifty cents each (postage in- 

 cluded). 



ANNOUNCEMENT OF MEETINGS OF THE ACADEMY AND 



AFFILIATED SOCIETIES 1 



Tuesday, November 6 : The Anthropological Society, at the National 

 Museum, at 4.30 p.m. Program: 



James H. Gore: Belgium. 



Tuesday, November 6: The Botanical Society, at the Cosmos Club, 

 at 8 p.m. 



Tuesday, November 6 : The Society of Engineers, at Rauscher's, 1034 

 Connecticut Ave., NW., at 8 p.m. 



Thursday, November 8 : The Chemical Society, at the Cosmos Club, 

 at 8 p.m. Program: 



Annual meeting for the election of officers. 



Saturday, November 10: The Philosophical Society, at the Cosmos 

 Club, at 8 p.m. Program: 



L. W. McKeehan (by invitation): Diffusion of and recoil from actinium emana- 

 tion. (Illustrated.) 30 minutes. 

 X. E. Dorsey: Radium luminous materials. (Illustrated.) 30minutes. 



Wednesday, November 14: The Geological Society, at the Cosmos 

 Club, at 8 p.m. 



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l The programs of the meetings of the affiliated societies will appear on this page if sent to the edi- 

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



