ANNOUNCEMENT OF MEETINGS OF THE ACADEMY AND 



AFFILIATED SOCIETIES.^ 



Tuesday, April 20: The Anthropological Society, at the Public Library, 

 at 8 p. m. Program: 



Annual Reports and Election of Officers. 

 Henry R. Evans: The old and new magic. , 



Tuesday, April 20: The Washington Society of Engineers, at the Cos- 

 mos Club, at 8 p. m. 



Wednesday, April 21: The Medical Society, at the Medical Depart- 

 ment of George Washing-ton University, at 8 p. m. 



Wednesday, April 21 : The Chemical Society, at the Cosmos Club, at 

 8 p. ra. Program: 



A. A. Notes: A system of qualitative analysis including nearly all the elements. 



Wednesday, April 28: The Geolpgical Society, at the Cosmos Club, 

 at 8 p. m. Program : 



C. W. Gilmoke: Some 7iew dinosaurs. (Illustrated^ . lo minutes. 



C. N. Fenner: A geological reconnaissance of Porto Rico. (Illustrated). 30 



minutes. 

 R. B. Sosman: Types if columnar structure in igneous rocks. (Illustrated). 



20 minutes. 



Wednesday, April 28: The Medical Society, at the Medical Depart- 

 ment of George Washington University, at, 8 p. m. 



Saturday, May 1: Tlic j^iuiugjcal Society, at tlie Cosmos Club, at S 

 p. m. Program: 



J. D. Hood: Som.e features in the morphology of the insect order Thysanoptera . 



(Illustrated). 15 minutes. 

 Vernon BAitEY: Notes on vaHation, distrihution, and habits of the pocket 



gophers of the genus ThoMomys. -(Illustrated). 15 minutes. 

 E.A.Goldman: Biological explorations in eastern Panama. (Illustrated). 30 



minutes. 



Tuesday, May 4: The Botanical Society, at the Cosmos Club, at 8 

 p. m. 



I The programs of the meetirjra oi the alHliat(Ki sociaues will .\ppear ou tub pugc- a ssp.o so ':ic 

 editors by the first and fifteenth days of each month. 



