OFFICERS OF THE ACADEMY 



President: Carl L. Alsberg, Bureau of Chemistry. 

 Corresponding Secretary: Robert B. Sosman, Geophysical Laboratory. 

 Recording Secretary: William R. Maxon, National Museum, 

 Treasurer: R. L. Faris, Coast and Geodetic Survey. 



ANNOUNCEMENT OF MEETINGS OF THE ACADEMY AND 



AFFILIATED SOCIETIES 



Tuesday, January 4. The Anthropological Society, at the National 

 Museum, at 4.45 p.m. 



Tuesday, January 4. The Botanical Society, at the Cosmos Club, 

 at 8.00 p.m. 



Wednesday, January 5. The Society of Engineers, at the Cosmos 

 Club. Program: 



Haete Cooke: The Diesel marine engine. 



Thursday, January 6. The Entomological Society, at the National 

 Museum, at 8.00 p.m. 



Tuesday, January IL The Academy, at the Carnegie Institution, 

 16th and P Streets, at 8.15 p.m. Program: 



J. R. Johnston: Some problems in economic biology in Tropical America. 



Annual meeting for the reports of officers, announcemerit of elections, and other 

 business. 



Tuesday, January 11, The Institute of Electrical Engineers, at the 

 Cosmos Club. 



Wednesday, January 12. The Geological Society, at the Cosmos 

 Club, at 8.00 p.m. 



Thursday, January 13. The Chemical Society. 



Saturday, January 15. The Philosophical Society, at the Cosmos 

 Club, at 8.15 p.m. Program: 



Address of the Retiring President, Robert B. Sosman: The distribution of scien- 

 tific information. 



Wednesday, January 19. The Society of Engineers. 



Thursday, January 20. The Academy, at the Cosmos Club, at 

 8.15 p.m. Program: 



Address of the Retiring President, C, 1,. Alsberg: The relation of chemical struc- 

 ture to physiological action. 



