OFFICERS 1911-1912. 
President, Wm, E. Praeger, Kalamazoo. 
Secretary-Treasurer, Geo. D. Shafer, East Lansing. 
Librarian, A. G. Ruth yen, Ann Arbor. 
VICE-PRESIDENTS. 
Agriculture, C. S. Robinson, East Lansing. 
Geography and Geology, Frank B. Taylor, Fort Wayne, Indiana. 
Zoology, R. W. Hegner, Ann Arbor. 
Botany, Henri Huss, Ann Arbor. 
Sanitary and Medical Science, Ward Giltner, East Lansing. 
Economics, H. S. Smalley, Ann Arbor. 
PAST-PRESIDENTS. 
Dr. W. J. Beal, East Lansing. 
Professor W. H. Slierzer, Ypsilanti. 
Bryant Walker, Esq., Detroit. 
Professor Y. M. Spalding, Tucson, Ariz. 
Dr. Henry B. Baker, Holland. 
Professor Jacob Reighard, Ann Arbor. 
Professor Charles E. Barr, Albion. 
Professor V. C. Vaughan, Ann Arbor. 
Professor F. C. Newcomb, Ann Arbor. 
Dr. A. C. Lane, Tnfts College, Mass. 
Professor W. B. Barrows, East Lansing. 
Dr. J. B. Pollock, Ann Arbor. 
Professor M. S. W. Jefferson, Ypsilanti. 
Dr. Charles E. Marshall, East Lansing. 
Professor Frank Leverett, Ann Arbor. 
Dr. F. G. Novy, Ann Arbor. 
COUNCIL. 
Council consists of the above named officers and all Resident Past- 
Presidents. 
