BOARD OF CONTROL P. K. YONGE, Chairman, Pensacola RAYMER F. MAGUIRE, Orlando A. H. BLENDING, Leesburg FRANK J. WIDEMAN, West Palm Beach W. B. DAVIS, Perry J. T. DIAMOND, Secretary, Tallahassee STATION EXECUTIVE STAFF JOHN J. TIGERT, M.A., LL.D., President IDA KEELING CRESAP, Librarian WILMON NEWELL, D. Sc., Director RUBY NEWHALL, Secretary** S. T. FLEMING, A.B., Asst. Director K. H. GRAHAM, Business Manager J. FRANCIS COOPER, M.S.A., Editor RACHEL McQUARRIE, Accountant R. M. FULGHUM, B.S.A., Asst. Editor 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., Assistant J. D. WARNER, M.S., Assistant JOHN P. CAMP, M.S.A., 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, AGRICULUTRAL 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 A. L. STAHL, Ph.D., 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 K. W. LOUCKS, M.S., Assistant ERDMAN WEST, B.S., Mycologist 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) W. L. THOMPSON, B.S., Assistant Entomologist (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) R. N. LOBDELL, M.S., Assistant Entomologist (Belle Glade) F. D. STEVENS, M.S., Sugarcane Agronomist (Belle Glade) H. H. WEDGWORTH, M.S., Associate Plant Pathologist (Belle Glade) FRED YOUNT, Office Assistant (Belle Glade) E. R. PURVIS, B.S., Laboratory Assistant in Soils (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) L. R. TOY, B.S.A., Assistant Horticulturist (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) W. B. SHIPPY, Ph.D., Assistant Plant Pathologist (Leesburg) C. C. GOFF, M.S., Assistant Entomologist (Leesburg) J. W. WILSON, Ph.D., Assistant Entomologist (Pierson) *In cooperation with U. S. Department of Agriculture. **On leave of absence.