The American Genetic Association 



President, DAVID FAIRCHILD Vice-President, W. E. CASTLE Secretary, E. W. SHEETS 



Treasurer, BOYD TAYLOR 



Honorary Vice-Presidents: ALESANDEH GRAHAM BELL and MRS. E. H. HARRIMAN 

 First President, JAMES WILSON, First Secretary. WILLET M. HAYS 



Editorial Board: 



T. H. KEARNEY C E. LEIGHTY GEO. M. DARROW 



WILSON POPENOE PAUL POPENOE 



Members of the Council are ex-officio members of the Editorial Board. 



Managing Editor: R. C. COOK 

 Circulation Editor: MRS. P. D. LUMSDEN 



COUNCIL 



W. E. CASTLE, Professor of Zoology, Harvard University, and Research Associate of the Carnegie Institution of Washington 

 G. N. COLLINS, Botanist, Bureau of Plant Industry, U. S. Department of Ac;ri™lturt, Washington, D. C. 

 0. F. COOK, Bionomist in Charge of Office of Crop Acclimatization, U. S. Department'of Agriculture, Washington, D. C. 

 DAVID FAIRCHILD, Agricultural Explorer in Charge of Foreign Seed and Plant Introduction, Bureau of Plant Industry, 



U. S. Department of Agriculture, Washington, D. C. 

 GILBERT GROSVBNOR, President National Geographic Society, Washington, D. C. 

 J. H. KEMPTON, Bureau of Plant Industry, U. S. Department of Agriculture, Wa-^hington, D. C. 

 E. W. SHEETS, Acting Chief of Animal Husbandry Division, U. S. Department of Agriculture, Washington, D. C. 

 FREDERICK ADAMS WOODS, Lecturer on Biology, Massachusetts Institute of Technology. 

 SEW ALL WRIGHT, Senior Animal Husbandman in Animal Genetics, U. S. Department of Agriculture, Washington, D. C. 



ADVISORY COMMITTEE 



W. S. ANDERSON, Genetics Department, University of Kentucky, Lexington, Kentucky, 



E. B. BABCOCK, Genetics Department. University of California, Berkeley, California. 



E. A. BESSEY, Professor of Botany. Michigan Agricultural College, East Lansing, Michigan. 



A. F. BLAKESLEE, Plant Genetics, Carnegie Institution of Washington, Cold Spring Harbor, L. I., N. Y. 



J. K. BREITENBECHER, Profes.sor of Zoology. University of Oklahoma, Norman, Oklahoma. 



W. E. BRYAN. Professor of Plant Breeding, University of Arizona, Tucson, Arizona. 



LEON J. COLE, Department of Genetics, University of Wisconsin, Madison, Wisconsin. 



C. B. DAVENPORT, Director, Dept. of Genetics, Carnegie Inst, of Washington, Cold Spring Harbor, L. I., N. Y. 

 J.' A. DETLEFSEN, Chief in Genetics, University of Illinois, Urbana, Illinois. 



RUSSELL W. DUCK, Professor of Animal Husbandry, Syracuse University, Syracuse, New York. 



E. M. EAST, Professor of Plant Genetics, Bussey Inst, of Applied Biology, Harvard University, Boston, Mass. 

 R A. EMERSON, Profe.'ssor of Plant Breeding, Cornell University, Ithaca, New York. 



C P GILLETTE, President, The Genetic Foundation, Fort Collins, Colorado. 



FREDERICK 0. GROVER, Professor of Botany, Oberlin College, Oberlin, Ohio. 



ROBERT T. HANCE, Professor of Genetics, North Dakota Agr'l College. Agricultiu-al College, North Dakota. 



HARRISON R. HUNT, Professor of Biology, University of Mississippi, O.xford, Mississippi. 



R. E. HUNT, Professor of Animal Husbandry, Virginia Polytechnic Institute. Blanksburg. Virginia. 



D. F. .TONES, Plant Breeder, Connecticut Agricultural Experiment Station. New Haven, Connecticut. 



F. B. LINFIETvD, Director, Montana Experiment Station, Bozeman, Montana. 



WM. A. LIPPINCOTT, Professor of Poultry Husbandry Kansas State -Agricultural College, Manhattan, Kansas. 

 C. C. LITTLE, President, University of Maine. Orono, Maine. 



JAY L. LUSH, Animal Husbandman, Texas Agricultural Experiment Station, College Station, Texas. 

 H. H. NEWMAN, Professor of Zoology, University of Chicago, Chicago, Illinois. 

 T S PALMER Export in O.ime Conservation, U. S. Department of Agriculture, Washington, D. C. 

 MRS. CHARLES 0. RUMSEY, New York City. 



CHARLES W. SALMON, Nation.il Committee for Mental Hygiene, New York City. 



JOHN M. SCOTT, Vire Director, Florida Agricultural Experiment Station, University of Florida, Gainesville, Florida. 

 JOHN W. SCOTT, Professor of Zoology, University of Wyoming, Laramie, Wyoming. 

 A. D. SHAMEL, Pomologist, U. S. Department of Agriculture, Riverside, California. 

 GEORGE H. SHULL, Professor of Biology, Princeton University, Princeton, New Jersey. 

 W. W. SMITH, Profeasor of Animal Husbandry, Purdue University, Lafayette, Indiana. 

 A B. STOUT, New York Botanical Gardens, Bronx, New York City. 



W. T. SWINGLE, Plant Physiologist in Charge of Crop Physiology and Breeding Investigations, U. S. Dept. of Agric, Washing- 

 ton, D. C. 



E. L. THORNDIKE, Professor of Educational Psychology, Columbia University, New York City. 



W. H. TOMHAVE, Head of Department of Animal Husbandry, Penn. State College, State College, Pennsylvania. 



H.E. WALTER, Genetics Laboratory, Brooklyn Institute of Arts and Sciences, Cold Spring Harbor, L. I., N. Y. 



H. J. WEBBER, Director, Citrus Experiment Station, Riverside, California. 



EDWARD N. WENTWORTH, Armour's Bureau of Agr'l Research and Economics, Union Stock Yards, Chicago, Illinois. 



P. W. WHITING. Child Welfare Research Station, University of Iowa, Iowa City, Iowa. 



JOHN A. WIDTSOE, 47 E. South Temple St., Salt Lake City, Utah. (Formerly President of Utah Agricultural College.) 



