OFFICERS OF THE ACADEMY 



President: F. L. Ransome, Geological Survey. 



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 



Wednesday, March 19. The Society of Engineers, 



Wednesday, March 19. The Medical Society. 



Thursday, March 20. The Washington Academy of Sciences, at the 



Cosmos Club, at 8.15 p. m. Program: 

 Lieut. Col. John R. Murlin, U. >S. A.: Food efficiency itt the United States Army. 



Thursday, March 20. The Society of Foresters, at the Wilson Normal 



School, at 8.15 p.m. Program: 

 Forestry in the Southern Appalachians : 

 Wii^LiAM Iv. Hall: htfluence of government oxintership. 

 W.W.Ashe: Effect of changed cojiditions upon forestry. 

 F. W. Reed: Progress in silvicuUural practice. 



Saturday, March 22. The Biological Society, at the Cosmos Club, at 

 8.00 p.m. 



Wednesday, March 26. The Medical Society. 



Wednesday, March 26. The Geological Society, at the Cosmos Club, 



at 8.00 p.m. Program: 

 R. B. Sosman: Note on volcanic explosions. 

 E. O. Ulrich: Newly discovered evidence of oscillating seas of the Paleozoic era. 



Thursday, March 27. Joint meeting of the Washington Academy of 

 Sciences and the Chemical Society, at the Cosmos Club, at 8.15 p.m. 

 Program : 



Arthur L. Day: Optical glass. 



Saturday, March 29. The Philosophical Society, at the Cosmos Club, 

 at 8.15 p.m. Program: 



W. R. Gregg: Trans-Atlantic flight from the meteorologist's point of view. (Illus- 

 trated.) 40 min. 



C. F. Marvin: The flight of aircraft and the deflective influence of the earth's rotation. 

 15 min. 



Tuesday, April i. The Anthropological Society. 

 Wednesday, April 2. The Society of Engineers. 

 Wednesday, April 2. The Medical Society. 

 Thursday, April 3. The Entomological vSociety. 



