The American Genetic Association 



ProK/fit/. DAVID FAIKCHILD. Viu-Pretident. W. E. CASTLE. Suretary, GEORGE U ROMMEL 



Tfeasuret. BOYD TAYLOR. 



Honorary Vict-PrtUderUs ALEXANDER GRAHAM BELL and MRS. E. H. HARRIMAN 

 Pirtt Prtstdfnt. JAMES WILSON PirtI Stcretory. WILLET M. HAYS. 



Editorial Board- 



G N. COLLINS SEW ALL WRIGHT PAUL POPENOE 



WALTER VAN FLEET E. W. SHEETS FREDERICK ADAMS WOODS 



U itiagint FMiot, OLIVER OLSON 



COUNCIL 



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

 Washington; Cambridge, Mass. 



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



O. F. COOK, Bionomist in Charge oi Office of Crop Acclimatization, Bureau of Plant Industry, U. S. Depftitnent 

 of Agriculture, Washington, D. C 



DAVID FAIRCHILD ARricultural Explorer in CharKc of Foreign Seed and Plant Introduction, Bureau of Plant 

 Industry, U. S. Departmeot of Agriculture. Waabtn^ton, D. C 



J H KEMPTON, Bureau of Plant Industry . U. S. Department of .^griculture. Washington. DC 



GEORGE M. ROMMEL, Chief of Animal Husbandry Divisioj, Bureau ol Animal Industry. U. S. Department of 

 Agriculture, Washington, D. C. 



T. H. KEARNEY, Physiologist in Charge, Alkali and Drought-Resistant Plant Breeding Investigations, Bnieau of 

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



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



SEWALL WRIGHT, Senior Animal llusbaodman in Animal Genetics, Bureau of Animal Industry U. S. Li«partncDt 

 of Agriculture, Washington, D. C. 



COMMITTEES ON RESEARCH 



Plant Breeding CHARLES R. STOCKARD, Secretary, Professor of 



Anatomy, Cornell Medical College, New York, 



WALTER T. SWINGLE, Chairman. Physiologist n^h^ j ^-r^^ -a n • i .-. »■ f a; u- . 



in Charge of Crop Physiology and Breeding Investiga- C C LITTLE, Carnegie Institution of Washington. 



tions. Bureau of Plant Industry, U. S. Department of . V'';.ePi',°5.iirM 'd ?'' 1*'*°<1' N- Y- 



Agriculture. Washington, D. C. J- A- DETLEFSEN, Professor of GeneUcs, College of 



A. B. STOUT, Director of Laboratories. New York BoUn- tt i5"''u,cv^m^D^*ii a °'*' ». r nw 



ical Garden New York. ^- ^- WENTWORTH, Armour & Company, Chicago, 



HERBERT J. WEBBER, Secretary, Professor of ,, ^1' », tt nuvrxnr • ti j i 



Plant Breeding, University of California. Director E. A. McILHENNY, Avery Island, U. 



of Citrus Substation and Dean of Graduate School _ 



of Tropical Agriculture, Riverside, Cal. liUgeWCS 



S'^?X^uJv?S,9.^.% ^y.'"' '].''?""•„ ., . FREDERICK ADAMS WOODS, Chairman, Lecturer 



"v>."^J^9LD HUME, Glen Saint Mary Nurseries, on Biology, Massachusetu Institute of Technology. 



Glen Saint Mary, Fla ADOLF MEYER, Vice-chairman, Professor of Piy- 



R. A EMERSON Professor of Plant Breeding, Cornell chiatry, Johns Hopkins University, and Director of 



T.' ^VXV^ly'}^^!"^^- ^y^, T, J- ^ Henry Phipps Psychiatric CUnic, Johns Hopkins Hoe- 



D. F. JONES. Professor of Plant Breeding, Connecticut pj^^l Baltimore Md 



. ^ff''^o.'."JtlEjP*';i'"^"^^'.*''°^t^S"U*^"'^°'"'- . CHArLeS B. davenport. Secretary, Director 



A. D. SHAM EL, Pomologist. U. S. Department of Department of Experimental Evolution (Carnegie 



Agnculture, Riverside, Cal. Institution of Washington), Cold Springs Harbor, 



Long Island. N. Y. 

 HOMER FOLKS. Secretary, SUte Charitlee Aid Aaao- 



Animal Breeding dation. New York City. 



Aumiiu xjiccumg THOMAS W. SALMON, Medical Director, National 



LEON J. COLE, Chairman, ProfesK)r of Genetics. Committee for Mental Hygiene, New York City. 



University of Wisconsin, Madison. Wis. EDWARD L. THORNDIKE. Profeasor of Educational 



T. S. palmer. Vice-Chairman, AssiaUnt Chief of Psychology, Columbia University. 



Biological Survey. Washington. D. C. MRS. CHARLES GARY RUMSEY, New York, N. Y. 



G«or|* baau Pabli«hia| CeaM'Tt Meaaska, Wia. 



