The American Genetic Association 



Preudtnl. DAVID FAIRCHILD. 



Vice-President, W. E. CASTLE. 

 Treasurer, BOYD TAYLOR. 



Secretary, GEORGE M. ROMMEL. 



Honorary Viu-PresidetUs: ALEXANDER GRAHAM BELL and MRS. E. H. HARRIMAN 

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



Editorial Board: 



G N. COLLINS SEWALL WRIGHT PAUL POPENOE 



WALTER VAN FLEET E. W. SHEETS FREDERICK ADAMS WOODS 



ilanaiint Editor, OLIVER OLSON 



COUNCIL 



W. E. CASTLE, Professor of Zoology, Harvmrd University, and Research Associate of the CameKit InstltntloD of 



Washington; Cambridge, Mass. 



G. N. COLLINS, Botanist, Bureau of Plant Industry, U S. Department of Agriculture, Washington, D. C. 



O. F. COOK, BioDomist in Charge of Office of Crop Acclimatization, Bureau of Plant Industry, U. S. Departuent 

 of Agriculture, Washington, D. C 



DAVID FAIRCHILD. Agricultural Explorer in Charge of Foreign Sr>.<] and Plant Introduction. Burtan of PUnt 

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



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



GEORGE M. ROMMEL, Chief of Animal Husbandry Divisir>j, Bureau oi Animal Industry, U. S. Department of 

 Agriculture, Washington, D. C. 



T. H. KEARNEY, rhysiologist in Charge, Alkali and Drought-Resistant Plant Breeding Investigations, Bureau ol 

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



FREIERICK ADAMS WOODS, Lecturer on Biology, Massachusetts Institute of Technology 



SEWAI.l. WRIGHT, Senior Animal Husbandman in Animal Genetics. Bureau of Animal Industry U. S. Department 

 uf Agriculture, Washington, D. C. 



COMMITTEES ON RESEARCH 



Plant Breeding 



WAITER T. SWINGLE. Chairman, Physiologist 

 in Charge of Crovi Physiology and Breeding Investiga- 

 tions, Hiire^ii of Plnnt Industry, U. S. Department of 

 Agriculture, Washington, D. C. 



A. K STOUT, Diretrtfr nf Laboratories, New York Botan- 

 ical Garden, New ^'ork. 



HERBERT J. WEBBER, Secretary, Professor of 

 Plant Breeding, University of California, Director 

 of Citriu Substation and Dean of Graduate School 

 of Tropical ^^^iclllt^lre. Riverside, Cal. 



HARVEY T. SCONCE, Sidell. Illinois. 



H. HAROLD HUME, Glen Saint Mary Nurseries, 

 Glen<=aintMBrv,Fla. 



R. A. EMERSOrQ, Professor of Plant Breeding, Cornell 

 Univer!<ity, Ithaca, N. Y. 



D. F. JONES. Professor of Plant Breeding, Connecticut 

 Aericiiltural Rxperimrnt Station, New Haven, Conn. 



A. D. SHAMF.L, Pnmologist, U. S. Department of 

 Agriculture, Riverside, Cal. 



Animal Breeding 



LFON J COT.E, Chsinnan, Profrisor of Genetics, 



Univemitv of Wisconsin, Madison, Wis. 

 T. S. PALMER, Vice Chairman, Assistant Chief of 



Biological Survey, Washington, D. C. 



CHARLES R. STOCK ARD, SecreUry, Professor of 



Anatomy, Cornell Medical College, New York, 



N Y 

 C C. LITTLE, Carnegie Institution of Washington, 



Colli Spring Harbor, Long Island, N. Y. 

 J. A. DETLEFSEN, Professor of Genetics, College of 



Agriculture, Urbana, niinois. 

 E. N. WENTWORTH, Armour & Company. Chicago. 



III. 

 E. A. McILHENNY, Avery Island, La. 



Eugenics 



FREDERICK ADAMS WOODS, Chairman, Lwturer 

 on Uiology, Massachusetts Institute o( Technology 



ADOLF MEYER, Vice-chairman, Professor of Psy- 

 chiatry, Johns Hopkins University, and Director of 

 Henry Phipps Psychiatric Clinic, Johns Hopkins Hoe- 

 pital, Baltimore, Md. 



CHARLES B. DAVENPORT, SecreUry, Director 

 Department of Experimental Evolution (Carnegie 

 Institution of Washington), Cold Springs Harbor, 

 Lonir Island, N. Y. 



HOMER FOLKS, SecreUry. SUta Charities Aid Aaao- 

 elation. New York City. 



THOMAS W. SALMON. Medical Director, National 

 Committee for Mental Hygiene, New York City. 



EDWARD L. THORNDIKE, Professor of Educational 

 Psychologv, Columbia University. 



MRS CHARLES GARY RUMSEY, New York. N. Y. 



(iftf Baals Pablithiag C*aiMa7i Ueaasha, Wis. 



