28 Proceedings of Indiana Academy of Science. 
Noyes, Harry A., Mellon Institute, Pittsburgh, Pa. 
Research Chemist and Bacteriologist. 
Oberholzer, H. C., National Museum, Washington, D. C. 
Biology. 
O’Neal, Claude E., 247 W. Lincoln Ave., Delaware, O. 
Botany and Bacteriology. 
Orahood, Harold, West Middleton, Howard County. 
Geology. 
Osner, G. A., Broadview, Mont. 
Plant Pathology. 
Owen, D. A., 200 S. State St., Franklin. 
Professor of Biology. (Retired.) 
Biology. 
Papish, Jacob, Ithaca, N. Y. 
Department of Chemistry, Cornell University. 
Chemistry. 
Peffer, Harvey Creighton, 412 N. Salisbury St., West Lafayette. 
Head of Chemical Engineering, Purdue University. 
Petry, Edward Jacob, 210 Ingalls St., S. Ann Arbor, Mich. 
Botany, University of Michigan. 
Botany, Plant Breeding, Plant Pathology, Bio-Chemistry. 
Pickett, Fermen L., Pullman College Station No. 36, Washington. 
Botany. 
Pinkerton, Earl, Hutsonville, Ili. 
Biology and Agriculture. 
Pipal, F. J., 114 S. Salisbury St., West Lafayette. 
Botany, Agricultural Experiment Station. 
Prentice, Burr N., 400 Russell St., West Lafayette. 
Assistant Professor of Forestry, Purdue. 
Ramsey, Glenn Blaine, Orono, Me. 
Botany. 
Richards, Aute, 307 E. Jefferson St., Crawfordsville. 
Professor of Zoology, Wabash College. 
Richards, Mrs. Mildred Hoge, 307 E. Jefferson St., Crawfordsville. 
Zoology. 
Rifenburgh, S. A., Valparaiso, Ind. 
Instructor Botany, Valparaiso University. 
Botany. 
Riley, Katherine, Robert W. Long Hospital, Indianapolis. 
Roark, Louis, Box 1162, Tulsa, Okla. 
Roxana Petroleum Company. 
Petroleum Geologist. 
Scott, W. R. M., West Lafayette. 
Agricultural Botany, Purdue University. 
