Nelson, Ralph Emory, 419 Vine St., West Lafayette. 
Chemistry. 
Nieuwland, J. A., The University, Notre Dame, Ind. 
Professor, Botany, Editor Midland Naturalist. 
Systematic Botany, Plant Histology, Organic Chemistry. 
North, Cecil C., Greencastle. 
Northnagel, Mildred, Gary, Ind. 
Oberholzer, H. C., U. S. Department Agriculture, Washington, D. C. 
Biology. 
O’Neal, Claude E., Bloomington. 
Graduate Student, Botany, Indiana University. 
Botany. 
Orahood, Harold, Kingman. 
Geology. 
Orton, Clayton R., State College, Pennsylvania. 
Assistant Professor of Botany, Pennsylvania State College. 
Phytopathology, Botany, Mycology, Bacteriology. 
Osner, G. A., Ithaca, New York. 
Care Agricultural College. 
Owen, D. A., 200 South State St., franklin. 
Professor of Biology. (Retired.) 
Biology. 
Owens, Charles E., Corvallis, Oregon. 
Instructor in Botany, Oregon Agricultural College. 
Botany. 
Payne, Dr. F., Bloomington, Ind. 
Peffer, Harvey Creighton, West Lafayette. 
Chemical Engineering. 
Petry, Edward Jacob, 267 Wood St., West Lafayette. 
Instructor in Agriculture. 
Botany, Plant Breeding, Plant Pathology, Bio-Chemistry. 
Phillips, Cyrus G., Moores Hill. 
Pickett, Permen L., Bloomington. 
Botany Critic, Indiana University Training School. 
Botany, Forestry, Agriculture. 
Pipal, F. J., 11 S. Salisbury St., West Lafayette. 
53— 4966 
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