ANNOUNCEMENT OF MEETINGS OF THE ACADEMY AND 



AFFILIATED SOCIETIEgi 



Saturday, April 6: The Biological Society, at the Cosmos Club, at 

 8 p. m. 



Tuesday, April 9 : The Anthropological Society, at Pubhc Library, at 

 8 p. m. Program: 



Paul Haupt, Professor of the Semitic languages and Director of the Oriental 

 Seminary in the Johns Hopkins University: Mesopotamia and Palestine. 



Wednesday, April 10 : The Geological Society, at the Cosmos Club, at 

 8 p. m. Program: 



Edwin Kirk: Paleozoic glaciation in Southeastern Alaska. 



H. E. Merwin and E. Posnjak: The iron-hydroxide minerals. 



J. B. Mertie : Repeated stream piracy and other physiographic anomalies in the 

 Tolovana district, Alaska. 



Thursday, April 11: The Chemical Society, at the Cosmos Club, at 8 

 p. m. 



Thursday, April 11: Society of American Foresters. Program: 



Benton McKate and L. S. Murphy: Colonization and management oj forest 

 lands after the war. 



Saturday, April 13 : The Philosophical Society, at the Cosmos Club, 

 at 8 p. m. 



Monday and Tuesday, April 22 and 23: The National Academy of 

 Sciences, at the Smithsonian Institution. A cordial invitation is 

 extended by the President of the National Academy of Sciences to 

 the members of the Washington Academy of Sciences to attend the 

 scientific sessions and the pubUc lectures. 



The William EUery Hale Lectures will be given by Professor John C. Merriam, 

 Professor of Paleontology, University of California, on the subject: The Be- 

 ginnings of Human History from the Geologic Record. 



These lectures will be held at 8 p. m. on Monday and 4 p. m. on Tuesday. 



Important reports on the work of the National Research Council will be pre- 

 sented at the scientific sessions. 



I The programs of the meetings of the affiliated Societies will appear on this page if sent to the 

 editors by the thiiteenth and twenty-seventh of each month. 



