Twentieth Annual Meeting of the 

 MICHIGAN ACADEMY OF SCIENCE. 



ANN ARBOR, MICHIGAN 



March 31 and April 1 and 2, 1915. 



GENERAL PROGRAM. 



Wednesday, March 31 



1:30 p. m. Council meeting, Geological Laboratory, first floor of Museum. 

 Reports of committees. 



2:30 p. m. General meeting of the Academy, Museum Lect.ure Room. 

 Election of members. 



3:00 p. m. Presidential Address, by Alexander G. Ruthven, The Zoo- 

 geographical Problem of the Guiana Sand Reefs. Including 

 an account of the University of Michigan Expedition to 

 Demerara in 1914, Museum Lecture Room. 



7:30 p. m. Social evening, first floor of Museum. 



Thursday, April 1 



8:30 a. m. Council meeting. Geological Laboratory, first floor of Museum. 



9:00 a. m. Meetings of sections. 



1:30 p. m. Meetings of sections for the reading of papers and election 



of vice-presidents. 

 8:00 p. m. Public lecture, by Professor William Herbert Hobbs, Some 



Italian Earthquakes, University Hall. 

 9:00 p. m. Smoker, given by the Research Club in Alumni Memorial Hall. 



Friday, April ? 



8:30 a. m. Council meeting. Geological Laboratory, first floor of Museum. 



9:30 a. m. General business meeting. Museum Lecture Room. Election 

 of officers and members. 

 10:30 a. m. Meeting of sections which have not completed the reading of 



papers. 

 12:00 m. Luncheon for biologists. Botanical Laboratories, South Wing of 

 Main Hall. 



2:00 p. m. Demonstration by the Museum of Zoology, University of Michi- 

 gan, of its collections and methods of work and the exhibi- 

 tion of zoological specimens of general interest, collected by 

 some of the expeditions. 



