OFFICERS OF THE ACADEMY 



President: Carl L. Ai^berg, Bureau of Chemistry. 

 Corresponding Secretary: Robert B. Sosman, Geophysical Ivaboratory. 

 Recording Secretary: William R. Maxon, National Museum. 

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



ANNOUNCEMENT OF MEETINGS OF THE ACADEMY AND 



AFFILIATED SOCIETIES^ 



Thursday, May 20. The Academy, at the Cosmos Club, at 8.15 p.m. 

 Program: 



E. B. Rosa: The economic value of scientific research by the Government. 



Saturday, May 22. The Philosophical Society, at the Cosmos Club, at 

 8.15 p.m. Program: 



H. L. Curtis and C. E. Mendenhail: Foreign laboratories and societies. • 

 W. P. White: Three methods of promoting precision in thermostats. ■ 



Thursday, May 27. The Chemical Society, at the Cosmos Club, at 

 8.00 p.m. 



Saturday, May 29. The Biological vSociety. 



> 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 of the month. 



