ANNOUNCEMENT OF MEETINGS OF THE ACADEMY AND 



AFFILIATED SOCIETIES' 



Tuesday, December 7: The ADthropoIogical Society, in the west 

 study-room of the Public Library, at 8 p. m. Program: 



Francts La Flesche : Right and left in Osage rites. 



Wednesday, December 8: The Geological Society, at the Cosmos 

 Club, at 8 p. m. Program: 



Annual meeting for the election of officers, etc. Address of the retiring President 

 T. Wayland Vaughan: Some problems in the geologic history of the peri- 

 meters of the Gvlf of Mexico and the Caribbean Sea. Illustrated. 



Wednesday, December 8: The Chemical Society, at the NewWillard 

 Hotel, at 8 p. m. (By courtesy of the National Rivers and Har- 

 bors Congress). Program: 



Motion pictures, accompanied by descriptive lecture, illustrating the manufacture 

 and testing of " National" steel pipe. 



Saturday, December 11: The Philosophical Society at the Cosmos 

 Club, at 8.15" p. ra. Program: 



Annual meeting for the reports and election of officers. 



Wednesday, December 15: The Washington Society of Engineers at 

 the Cosmos Club, at 8 pm. Program: 



Annual meeting for the election of officers, etc. 



Thursday, December 16: The Chemical Society, at the Cosmos Club, 

 at 8 p. m. Program: 



G. K. Burgess: Some examples of metal failure. Illustrated. 



B. McCollum: Chemical factors affecting electrolytic corrosin in soils and rein- 

 forced concrete. 



R. B. Dole : The action of natural waters on boilers. 



'The programs of the meetings of the affiliated societies v. i!l appear on this page if sent <.a the 

 editors by the first and fifteenth daj's of each month. 



