BOARD OF CONTROL Frank M. Harris, Chairman, St. Peters- burg N. B. Jordan, Quincy Hollis Rinehart, Miami Eli H. Fink, Jacksonville George J. White, Sr., Mount Dora W. F. Powers, Secretary, Tallahassee EXECUTIVE STAFF J. Hills Miller, Ph.D., President" J. Wayne Reitz, Ph.D., Provost for Agr.a Willard M. Fifield, M.S., Director J. R. Beckenbach, Ph.D., Asso. Director L. 0. Gratz, Ph.D., Asst. Dir., Research Geo. F. Baughman, M.S., Business Mgr.' Rogers L. Bartley, B.S., Admin. Mgr.' Claranelle Alderman, Accountants MAIN STATION, GAINESVILLE AGRICULTURAL ECONOMICS H. G. Hamilton, Ph.D., Agr. Econo- mist' 8 R. E. L. Greene, Ph.D., Agr. Economist Zach Savage, M.S.A., Associate A H. Spurlock, M.S.A., Associate D. E. Alleger, M.S., Associate D. L. Brooke, M.S.A., Associate M R. Godwin, Ph.D., Associate H. W. Little, M.S., Assistant' Tallmadge Bergen, B.S., Assistant D. C. Kimmel, Ph.D., Assistant A. L. Larson, Ph.D., Agr. Economist Orlando, Florida (Cooperative USDA) G. Norman Rose, B.S., Asso. Agr. Economist J. C. Townsend, Jr., B.S.A., Agr. Statistician2 J. B. Owens, B.S.A., Agr. Statistician AGRICULTURAL ENGINEERING Frazier Rogers, M S.A., Agr. Engineer' 3 J. M. Johnson, B.S.A.E., Asso. Agr. Eng.' J. M. Myers, B S., Asso. Agr. Engineer _.. E. Choate, B.S.A.E., Asst. Agr. Engr ' A. M. Pettis, B.S.A.E., Asst. Agr. Eng.- s AGRONOMY Fred H. Hull, Ph.D., Agronomist' G. B. Killinger, Ph.D., Agronomist3 H. C. Harris, Ph.D., Agronomist R. W. Bledsoe, Ph.D., Agronomist W. A. Carver, Ph.D., Associate Darrel D. Morey, Ph.D., Associate Fred A. Clark, B.S., Assistant Myron C. Grennell, B.S.A.E., Assistant E. S. Horner, Ph.D., Assistant A. T. Wallace, Ph.D., Assistant D. E. McCloud, Ph.D., Assistant ANIMAL HUSB. AND NUTRITION T, J. Cunha, Ph.D., An. Hush.'1 R. S. Glasscock, Ph.D., An. Husb.' G. Davis, Ph.D., Animal Nutritionists R. L. Shirley, Ph.D., Biochemist' J. E. Pace, M.S., Asst. An. Hush ' S. John Folks, B.S.A., Asst. An. Husb." Katherine Boney, B.S., Asst. Chem. James M. Wing, M.S., Asst. Dairy Husb. A. M. Pearson, Ph.D., Asst. An. Husb.S John D. Feaster, Ph.D., An. Nutritionist H. D. Wallace, Ph.D., Asst. An Husb. DAIRY SCIENCE E. L. Fouts, Ph.D.. Dairy Tech.' ' R. B. Becker, Ph.D., Dairy Husb.' S. P. Marshall, Ph.D., Asso. Dairy Husb.' W. A. Krienke, M.S., Asso. in Dairy Mfs.' P. T. Dix Arnold, M.S.A., Asst. Dairy Husb.2 Leon Mull, Ph.D., Asst. Dairy Tech. H. Wilkowske, Ph.D., Asst. Dairy Tech. EDITORIAL J. Francis Cooper, M.S.A., Editor' Clyde Beale, A.B.J., Associate Editor' L. Odell Griffith, B.A.J., Asst. Editor' J. N. Joiner, B.S.A., Assistant Editor' * ENTOMOLOGY A. N. Tissot, Ph.D., Entomologist' L. C. Kuitert, Ph.D., Associate H. E. Bratley, M.S.A., Assistant F. A. Robinson, M.S., Asst. Apiculturist HOME ECONOMICS Ouida D. Abbott, Ph.D., Home Econ.' R. B. French, Ph.D., Biochemist HORTICULTURE G. H. Blackmon, M.S.A., Horticulturist' F. S. Jamison, Ph.D., Horticulturist' Albert P Lorz, Ph.D., Horticulturist R. K. Showalter, M.S., Asso. Hort. R. A. Dennison, Ph.D., Asso. Hort. R. H. Sharpe, M.S., Asso. Horticulturist F. S. Lagasse, Ph.D., Asso. Hort.2 R. D. Dickey, M.S.A., Asst. Hort. V. F. Nettles, Ph.D., Asst. Hort. L. H. Halsey, M.S.A., Asst. Hort. C. D. Hall, Ph.D., Asst. Horticulturist S. E. McFadden, Ph.D., Asst. Hort. Austin Griffiths, Jr., B.S., Asst. Hort. LIBRARY Ida Keeling Cresap, Librarian PLANT PATHOLOGY W. B. Tisdale, Ph.D., Plant Patholo- gist' I Phares Decker, Ph.D., Plant Pathologist Erdman West, M.S., Mycologist and Botanist Robert W. Earhart, Ph.D., Plant Path.2 Howard N. Miller, Ph.D., Asso. Plant Path. Lillian E. Arnold, M.S., Asst. Botanist C. W. Anderson, Ph.D., Asst. Plant Path. POULTRY HUSBANDRY N. R. Mehrhof, M.Agr., Poultry Husb.' ' J. C.' Driggers, Ph.D., Asso. Poultry Husbh. SOILS F. B. Smith, Ph.D., Microbiologist1 Gaylord M. Volk, Ph.D., Soils Chemist J. R. Henderson, M.S.A., Soil Technolo- gists J. R. Neller, Ph.D., Soils Chemist Nathan Gammon, Jr., Ph.D., Soils Chemist R. A. Carrigan, Ph.D., Biochemist' Ralph G. Leighty, B.S., Asso. Soil Surveyor' G. D. Thornton, Ph.D., Asso.4 Microbiologist' Charles F. Eno, Ph.D., Asst. Soils Microbiologist H. W. Winsor, B.S.A., Assistant Chemist R. E. Caldwell, M.S.A., Asst. Chemist' V. W. Carlisle, B.S., Asst. Soil Surveyor .ames H. Walker, M.S.A., Asst. Soil Surveyor S N. Edson, M.S., Asst. Microbiologist William K. Robertson, Ph.D., Asst. Chemist 0. E. Cruz, B.S.A., Asst. Soil Surveyor W. G. Blue, Ph.D., Asst. Biochemist VETERINARY SCIENCE D. A. Sanders, D.V.M., Veterinarian' M. W. Emmel, D.V.M., Veterinarian' C. F. Simpson, D.V.M., Asso. Veterinarian L. E. Swanson, D.V.M., Parasitologist Glenn Van Ness, D.V.M., Asso. Poultry Pathologist G. E. Batte, D.V.M., Asso. Parasitologist