ANNOUNCEMENT OF MEETINGS OF THE ACADEMY AND 



AFFILIATED SOCIETIES^ 



WASHINGTON ACADEMY OF SCIENCES 



The Washington Academy of Sciences will give a sei;jes of lectures in the 

 auditorium of the New National Museum, to which the public is invited. The 

 first four of these lectures will be given at 4.45 P.M. and the last will be held at 

 8.30 in the evening. All these lectures will be illustrated by lantern slides. 

 The program is as follows : 



Thursday, March 18: The Volcano Kilauea in action. Arthur L. D at, Director 



of the Geophysical Laboratory, Carnegie Institution. 

 Thursday, March 25: Nematodes, their relations to mankind and to agriculture. 



N. A. Cobb, of the Bureau of Plant Industry, U. S. Dept. of Agriculture. 

 Thursday, April 1 : High explosives and their efects. Charles E. Munroe, 



Dean of Graduate Studies, George Washington University. 

 Thursday, April 8: Insects and their relation to disease. W. D. Htjnteb, of the 



Bureau of Entomology, U. S. Dept. of Agriculture. 



Thursday, April 15 : The Earth. R. S. Woodward, President of the Carnegie 

 Institution. 



Tuesday, April 6: The Botanical Society, at the Cosmos Club, at 8 



p.m. Program: 



Charles D. Walcott : Prepaleozoic algae. (Illustrated). 40 minutes. 

 C.A.Davis: Thealgal flora of some Eocene oil shales. (Illustrated). 25 minutes. 

 David White: Algae in the upper Paleozoic. (Illustrated). 20 minutes. 



Wednesday, April 7: The Washington Society of Engineers, at the 

 Cosmos Club, at 8 p.m. Program: 



F. H. Newell: A National Water Law. 



Thursday, April 8: The Chemical Society, at the Cosmos Club, at 8 

 p.m. Program: 



H. D. GiBBS: A study of some palm trees, with special reference to the su^ar and 



alcohol industries. (Illustrated). 

 C. S. Hudson: The acetyl derivatives of the sugars. 



Saturday, April 10: The Philosophical Society, at the Cosmos Club, 

 at 8.15 p.m. Program: 



William Bowie : Recent progress in geodesy. 30 minutes. 



H. E. Merwin: Color phenomena resulting from dispersion in covellite. 10 

 minutes. 



G. W. Vinal: Solubility of metallic silver in distilled water. 10 minutes. 

 M.James: A conducting paint. 5 minutes. 



Wednesday, April 14: The Geological Society, at the Cosmos Club, 

 at 8 p.m. Program: 



J. B. Mertie : The copper and gold deposits of the Kotina-Kutkulana District, 



Alaska. 

 J. W. Gidley: The relation of vertebrate fossils to stratigraphy. 

 Chase Palmer: The silver precipitating capacity of certain arsenides as an index 



of their constitution. 



Saturday, April 17: The Biological Society, at the Cosmos Cliib, at 

 8 p.m. 



1 The programs of the meetings of the affiliated societies will appear on this page If sent to th& 

 editors by the first and fifteenth days of each month. 



