Active Members. 
McIntosh, Arthur C., 111 N. Dunn St., Bloomington. 
Senior Student, Indiana University: Botany. 
Mahin, Edward G., 27 Russell St., West Lafayette. 
Professor of Analytical Chemistry, Purdue University. 
Mains, E. B., 212 8S. Grant St., West Lafayette. 
Assistant Botanist, Agr. Exper. Station, Purdue University. 
Plant Pathology and Mycology. 
Mallon, Marguerite G., 221 Waldron St., West Lafayette. 
Instructor in Food Chemistry, Purdue University. 
Malott, Burton J., Indianapolis, Care of Tech. High School. 
Physiography and Geology. 
Malott, Clyde A., 521 East Second St., Bloomington. 
Geology, Indiana University. 
Mason, Thomas E., 130 Andrew Place, West Lafayette. 
Assistant Professor of Mathematics, Purdue University. 
Miller, J. Ford, 946 N. Meridian St., Indianapolis. 
(Graduate Student in France, 1920-21.) 
Miller, John W., 444 Littleton St., West Lafayette. 
Instructor in Plant Pathology, Purdue University. 
Molby, Fred A., 226 Lorraine Ave., Cincinnati, Ohio. 
Physics Department, University of Cincinnati. 
Montgomery, Dr. H. F., 244 Jefferson Bldg., South Bend. 
Geology and Medicine. 
Morgan, Frank W., Science Hall, Valparaiso. 
Professor of Inorganic Chemistry, Valparaiso University. 
Morgan, Will, University Heights, Indianapolis. 
Instructor in Zoology, Indiana Central University. 
Morrison, Harold, Bureau of Entomology, Washington, D. C. 
Entomologist. 
Morrison, Louis A., East Lansing, Michigan. 
Muldoon, Hugh C., 361 Garfield St., Valparaiso. 
Dean of Pharmacy, Valparaiso University. 
Chemistry. 
Munro, George W., 202 Waldron St., West Lafayette. 
Professor of Mechanical Engineering, Purdue University. 
Myers, B. D., 321 N. Washington St., Bloomington. 
Professor of Anatomy, Indiana University. 
Nelson, Ralph E., 232 Littleton St., West Lafayette. 
Assistant Professor of Chemistry, Purdue University. 
Newman, G. B., Fryeburg, Maine. 
Entomologist. 
Nicholson, Thomas E., 519 N. Fess Ave., Bloomington. 
Instructor in Psychology, Indiana University. 
Noyes, Harry A., Westfield. New York, care Welch Grape Juice Co. 
Research Chemist and Bacteriologist. 
O'Neal, Claude E., Forrest Ave., Delaware, Ohio. 
Professor of Botany, Ohio Wesleyan University. 
Oberdoerfer, Rey. P. Benedict, Main Building, Notre Dame. 
Graduate Student in Chemistry and Physics, Notre Dame Uniy. 
