BOARD OF CONTROL P. K. YONGE, Chairman, Pensacola A. H. BLENDING, Leesburg W. B. DAVIS, Perry RAYMER F. MAGUIRE, Orlando FRANK J. WIDEMAN, West Palm Beach J. T. DIAMOND, Secretary, Tallahassee J. G. KELLUM, Auditor, Tallahassee STATION EXECUTIVE STAFF JOHN J. TIGERT, M.A., LL.D., President WILMON NEWELL, D. Sc., Director S. T. FLEMING, A.B., Asst. Director J. FRANCIS COOPER, M.S.A., Editor R. M. FULGHUM, B.S.A., Asst. Editor IDA KEELING CRESAP, Librarian RUBY NEWHALL, Secretary** K. H. GRAHAM, Business Manager RACHEL McQUARRIE, Accountant MAIN STATION-DEPARTMENTS AND INVESTIGATORS AGRONOMY W. E. STOKES, M.S., Agronomist W. A. LEUKEL, Ph.D., Associate G. E. RITCHEY, M.S.A., Assistant* FRED H. HULL, M.S.A., Assistant J. D. WARNER, M.S., Assistant ANIMAL HUSBANDRY A. L. SHEALY, D.V.M., Veterinarian in Charge E. F. THOMAS, D.V.M., Asst. Veterinarian R. B. BECKER, Ph.D., Associate in Dairy Husbandry W. M. NEAL, Ph.D., Assistant in Animal Nutrition C. R. DAWSON, B.S.A., Assistant Dairy Investigations CHEMISTRY R. W. RUPRECHT, Ph.D., Chemist R. M. BARNETTE, Ph.D., Associate C. E. BELL, M.S., Assistant H. L. MARSHALL, M.S., Assistant J. M. COLEMAN, B.S.. Assistant J. B. HESTER, B.S., Assistant COTTON INVESTIGATIONS W. A. CARVER, Ph.D., Assistant E. F. GROSSMAN. M.A., Assistant** RAYMOND CROWN, B.S.A., Field Assistant ECONOMICS, AGRICULTURAL C. V. NOBLE, Ph.D., Agricultural Economist BRUCE McKINLEY, A.B., B.S.A., Associate M. A. BROOKER, M.S.A., Assistant** JOHN L. WANN, B.S.A., Assistant ECONOMICS, HOME OUIDA DAVIS ABBOTT, Ph.D., Head L. W. GADDUM, Ph.D., Biochemist C. F. AHMANN, Ph.D., Physiologist ENTOMOLOGY J. R. WATSON, A.M., Entomologist A. N. TISSOT. M.S., Assistant H. E. BRATLEY, M.S.A., Assistant-' HORTICULTURE A. F. CAMP, Ph.D., Horticulturist" M. R. ENSIGN, M.S.. Assistant HAROLD MOWRY, B.S.A., Assistant** G. H. BLACKMON, M.S.A., Pecan Culturist** PLANT PATHOLOGY W. B. TISDALE, Ph.D., Plant Pathologist G. F. WEBER, Ph.D., Associate A. H. EDDINS, Ph.D., Assistant W. B. SHIPPY, Ph.D., Assistant K. W. LOUCKS. M.S., Assistant ERDMAN WEST, B.S., Myco'ogist** BRANCH STATION AND FIELD WORKERS R. R. KINCAID, M.S., Assistant Plant Pathologist (Quincy) JESSE REEVES, Foreman, Tobacco Experiment Station (Quincy) J. H. JEFFERIES, Superintendent, Citrus Experiment Station (Lake Alfred) W. A. KUNTZ, A.M., Assistant Plant Pathologist (Lake Alfred) B. R. FUDGE, Ph.D., Assistant Chemist (Lake Alfred) GEO. E. TEDDER, Foreman, Everglades Experiment Station (Belle Glade) R. V. ALLISON, Ph.D., Soils Specialist in charge Everglades Experiment Station (Belle Glade) L. O. GRATZ, Ph.D., Associate Plant Pathologist (Hastings) A. N. BROOKS, Ph.D., Associate Plant Pathologist (Plant City) A. S. RHOADS, Ph.D., Associate Plant Pathologist (Cocoa) STACY O. HAWKINS, M.A., Field Assistant in Plant Pathology (Homestead) D. G. A. KELBERT, Field Assistant in Plant Pathology (Bradenton) R. E. NOLEN, M.S.A., Field Assistant in Plant Pathology (Monticello) FRED W. WALKER, Assistant Entomologist (Monticello)** D. A. SANDERS, D.V.M., Associate Veterinarian (West Palm Beach) M. N. WALKER, Ph.D., Associate Plant Pathologist (Leesburg) *In cooperation with U. S. Department of Agriculture. **On leave of absence.