ANNOUNCEMENT OF MEETINGS OF THE ACADEMY AND 



AFFILIATED SOCIETIES* s 



Saturday, February 5 : The Philosophical Society, at the Cosmos Club, 

 at 8.15 p. m. Program: 



Eugene C. Bingham (by invitation): "Plastic Flow." Illustrated, 30 min- 

 utes. 



E. Buckingham: Notes on the theory of Efflux viscosimet-ers. 30 minutes. 



Wednesday, February 9: The Geological Society, at fhe Cosmos Club, 

 at 8 p.m. Program: 



Charles Butts: Faults of unusual character in central Pennsylvania. Illus- 

 trated, 20 minutes. 



Laurence La Forge : R4sum6 of the geology of southeastern New England in 

 the light of field work done since 1908. Illustrated, 20 ininut< 



A. H. Brooks: Physiographic provences of Alaska. Illustrated, 15 minutes. 



Tuesday, February 15 : The Anthropological Society, in the west study 

 room of the District Public Library, at 8 p. m. 



Wednesday, February 16: The Washington Society of Engineers, at 

 the Cosmos Club, at 8 p. m. Program: 



H. W. Hudson, of New York City: The Hell Gate arch bridge and approaches of 

 the New York Connecting Railroad. Illustrated. 



1 The programs of the meetings of the affiliated societies will appear on this page if seat to tbe 

 editors by the first and fiiteenth days of each month. 



