ANNOUNCEMENTS OF MEETINGS OF THE ACADEMY AND 



AFFILIATED SOCIETIES 



Saturday, March 5. The Biological vSociety, at the Cosmos Club, at 8 p.m. 



Tuesday, March 8. The Institute of Electrical Engineers, at the Cosmos 

 Club, at 8.15 p.m. 



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

 8 p.m. Program: 



David White: Presidential addrtss. 



Thursday, March 10. The Chemical Society, at the Cosmos Club, at 8 p.m. 

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

 8.15 p.m. 



Tuesday, March 15. The Anthropological Society, at the National Museum, 

 at 4.45 p.m. 



Wednesday, March 16, The Society of Engineers, at the Cosmos Club. 

 Thursday, March 17. The Academy, at the Cosmos Club, at 8.15 p.m. 

 Program : 



A. M. Nicolson: The piezo-electric effect in crystals. 



Saturday, March 19. The Philosophical Society, at the Cosmos Club, at 

 8.15 p.m. 



PROGRAMS ANNOUNCED SINCE THE PRECEDING ISSUE OF THE JOURNAL' 



Tuesday, February 8. The Institute of Electrical Engineers, at the Cosmos Club, at 

 8.15 p.m. Program: Harold Goodwin, Jr.: The Superpower System and its rela- 

 tions to the Capital. 



Tuesday, February 8. The Anthropological Society, at the National Museum, at 4.4.'i 

 p.m. Program: W. E. Sapford: Old and new Samoa. 



Wednesday, February 9. The Geological Society, at the Cosmos Club, at 8 p.m. Pro- 

 gram: H. S. Washington: TJie Deccan traps and other plateau basalts. R. C. Weu*s: 

 Utilization of some western^ salines and saline lakes. R. S. Basslrr: Paleontologiral 

 work at the National Museum. 



Tuesday, February 15. The Historical Society, at the Cosmos Club, at 8.15 p.m. Pro- 

 gram: Charles O. Paullin: T lie founding of an astronomical observatory in Washing- 

 ton. 



Wednesday, February 16. The Society of Engineers, at the Cosmos Club, at S.lo p.m. 

 Program: Charles R. Mann: Vocational education in the Army; its relation to the 

 new military policy. 



Saturday, February 19. The Biological Society, at the Cosmos Club, at 8 p.m. Pro- 

 gram: C. E. McClung: Chromosomes in relation to heredity. Sewall Wright: 

 Heredity as a factor in the resistance of guinea pigs to tuberculosis. 



Saturday, February 26. The Philosophical Society, at the Cosmos Club, at 8.15 p.m. 

 Program: F. Hastings Smyth and Howard S. Roberts: The system cupric oxide, 

 cuprous oxide, 'oxygen. F. Wenner, J. S. Marti.n, and Nyna L. Porman: The 

 electrical resistance of the human body. 



' Received too late for publication before the date of the meeting. 



