EXECUTIVE STAFF John J. Tigert, M.A., LL.D., President of the University Wilmon Newell, D.Sc., Director H. Harold Hume, M.S., Asst. Dir., Research Harold Mowry, M.S.A., Asst. Dir., Adm. J. Francis Cooper, M.S.A., Editor Clyde Beale, A.B.J., Assistant Editor Jefferson Thomas, Assistant Editor Ida Keeling Cresap, Librarian Ruby Newhall, Administrative Manager K. H. Graham, Business Manager Rachel McQuarrie, Accountant MAIN STATION, GAINESVILLE AGRONOMY W. E. Stokes, M.S., Agronomist** W. A. Leukel, Ph.D., Agronomist G. E. Ritchey, M.S.A., Associate* Fred H. Hull, Ph.D., Associate W. A. Carver, Ph.D., Associate John P. Camp, M.S., Assistant ANIMAL HUSBANDRY A. L. Shealy, D.V.M., Animal Husbandman** R. B. Becker, Ph.D., Dairy Husbandman W. M. Neal, Ph.D., Associate in Animal Nutrition D. A. Sanders, D.V.M., Veterinarian M. W. Emmel, D.V.M., Asst. Veterinarian W. W. Henley, B.S.A., Assistant Animal Husbandman P. T. Dix Arnold, B.S.A., Assistant Dairy Husbandman CHEMISTRY AND SOILS R. W. Ruprecht, Ph.D., Chemist** R. M. Barnette. Ph.D., Chemist C. E. Bell, Ph.D., Associate R. B. French, Ph.D., Associate H. W. Winsor, B.S.A., Assistant H. W. Jones, M.S., Assistant ECONOMICS, AGRICULTURAL C. V. Noble, Ph.D., Agricultural Economist** Bruce McKinley, A.B., B.S.A., Associate Zach Savage, M.S.A., Associate A. H. Spurlock, M.S.A., Assistant ECONOMICS, HOME Ouida Davis Abbott, Ph.D., Specialist** L. W. Gaddum, Ph.D., Biochemist C. F. Ahmann, Ph.D., Physiologist J. T. Hall, Jr., B.S.Ch.E., Asst. Physiologist ENTOMOLOGY J. R. Watson, A.M., Entomologist** A. N. Tissot, Ph.D., Associate H. E. Bratley, M.S.A., Assistant J. W. Kea, B.S.A., Assistant HORTICULTURE A. F. Camp, Ph.D., Horticulturist** G. H. Blackmon, M.S.A., Horticulturist A. L. Stahl, Ph.D., Associate F. S. Jamison, Ph.D., Truck Horticulturist R. J. Wilmot, M.S.A., Specialist, Fumigation Research R. D. Dickey, B.S.A., Assistant Horticulturist PLANT PATHOLOGY W. B. Tisdale, Ph.D., Plant Pathologist** George F. Weber, Ph.D., Plant Pathologist R. K. Voorhees, M.S., Assistant Erdman West, M.S., Mycologist Lillian E. Arnold, M.S., Assistant Botanist In cooperation with U.S.D.A. ** Head of Department. BOARD OF CONTROL Gee. H. Baldwin, Chairman, Jacksonville A. H. Blanding, Bartow A. H. Wagg, West Palm Beach Oliver J. Semmes, Pensacola Harry C. Duncan, Tavares J. T. Diamond, Secretary, Tallahassee BRANCH STATIONS NORTH FLORIDA STATION, QUINCY L. O. Gratz, Ph.D., Plant Pathologist in Charge R. R. Kincaid, Ph.D., Asso. Plant Pathologist J. D. Warner, M.S., Agronomist R. M. Crown, B.S.A., Asst. Agronomist Jesse Reeves, Farm Superintendent CITRUS STATION, LAKE ALFRED John H. Jefferies, Superintendent Geo. D. Ruehle, Ph.D., Associate Plant Pathologist W. A. Kuntz, A.M., Assoc. Plant Pathologist B. R. Fudge, Ph.D., Associate Chemist W. L. Thompson, B.S., Asst. Entomologist EVERGLADES STATION, BELLE GLADE A. Daane, Ph.D., Agronomist in Charge R. N. Lobdell, M.S., Entomologist F. D. Stevens, B.S., Sugarcane Agronomist G. R. Townsend, Ph.D., Assistant Plant Pathologist J. R. Neller, Ph.D., Biochemist R. W. Kidder, B.S., Assistant Animal Husbandman Ross E. Robertson, B.S., Assistant Chemist SUB-TROPICAL STATION, HOMESTEAD H. S. Wolfe, Ph.D., Horticulturist in Charge W. M. Fifield, M.S., Asst. Horticulturist Stacy O. Hawkins, M.A., Assistant Plant Pathologist WEST CENTRAL FLORIDA STATION, BROOKSVILLE E. W. Sheets, D.Agri., Animal Husbandman in Charge* W. F. Ward, M.S.A., Asst. An. Husbandman* FIELD STATIONS Leesburg M. N. Walker, Ph.D.,. Plant Pathologist in Charge W. B. Shippy, Ph.D,. Asso. Plant Pathologist K. W. Loucks, M.S., Asst. Plant Pathologist J. W. Wilson, Ph.D., Associate Entomologist C. C. Goff, M.S., Assistant Entomologist Plant City A. N. Brooks, Ph.D., Plant Pathologist R. E. Nolen, M.S.A., Asst. Plant Pathologist Cocoa A. S. Rhoads, Ph.D., Plant Pathologist Hastings A. H. Eddins, Ph.D., Plant Pathologist Monticello G. B. Fairchild, M.S., Assistant Entomologist Bradenton David G. Kelbert, Asst. Plant Pathologist Sanford E. R. Purvis. Ph.D., Assistant Chemist, Celery Investigations