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 



Friday, April 4. The Washington Academy of Sciences, at the Cosmos 



Club, at 8.15 p.m. Program: 



Lieut. Col. Byro^ C. Goss, Chief Gas Officer, Second Army, A. E. F.: Gas warfare 

 at the front. 



Saturday, April 5. The Biological Society, at the Cosmos Club, at 

 8.00 p.m. Program: 



W. P. Taylor: Notes on Dr. James Graham Cooper's scientific investigations on the 

 Pacific Coast. 10 min. 



Alexander Wetmore : The brown pelican. (Illustrated.) 20 min. 



Agnes Chase: The oil grasses and their uses in perfumery. 15 min. 



Tuesday, April 8. The Electrical Engineers. 



Wednesday, April 9. The Geological Society, at the Cosmos Club, at 



8.00 p.m. Program: 

 C. E- Van Ostrand: Temperatures in some deep wells in the United States. 

 E. T. Wherry: Some practical applications of crystallography. 

 E. W., Berry: Present tendencies in geology. I. Paleontology. 



Wednesday, April 9. The Medical Society. 



Saturday, April 12. The Philosophical Society, at the Cosmos Club, 

 at 8.15 p.m. Program: 



William Bowie: Mapping the United States for military and civil needs. 



(Illustrated.) 30 min. 

 Oscar S. Adams : A study of map projections in general. (Illustrated.) 30 min. 



Tuesday, April 15. The Chemical Society, at the Cosmos Club, at 



8.00 p.m. Program: 

 Reports from tlie Buffalo Meeting of the American Chemical Society. 



Tuesday, April 15. The Anthropological Society. 



Wednesday, April 16. The Society of Engineers. 



Saturday, April 19. The Biological Society, at the Cosmos Club, at 

 8.00 p.m. 



