The American Genetic Association 



Pr-idtHt. DAVID FAIRCHILD. Vic4-Fretident, W. E. CASTLE. Ster^try, GEORGE If. ROMMEL. 



TTM»m*r, BOYD TAYLOR. 



Bontrmry Vict-Prtsidtnis: ALEXANDER GRAHAM BELL and MRS. E. H. HARRIMAN 

 Pirsl Pr$M«Ht. JAMES WILSON. Pirtt SurtUry, WILLET M. HAYS. 



EdiUrial Bo*ri: 



G.N.COLLINS SEW ALL WRIGHT PAUL POPENOE 



WALTER VAN FLEET E. W. SHEETS FREDERICK ADAMS WOODS 



Uanatint EdUar, OLIVER OLSON 



COUNCIL 



W. E. CASTLE, ProfMsor of Zoology • Harvard Univenity, and Reaearcb Associate of the Carnegie IiuUtntion of 

 WailuDgtonr Cambridge, Maia. 



G N. COLLINS, BoUniit, Bureau of Plant Industry, U. S. Department of Africulture, Washington, D. C. 



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

 of Agriculture, Washington, D. C 



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

 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 Divisioa, Bureaa oi Animal Industry. U. S. Department of 

 Agriculture, Washington, D. C. 



T. H. KEARNEY, Physiologist in Charge, Alkali and Drougbt-ReaisUnt Plant Breeding Investigations, Bureaa of 

 Plant Industry, U. S. Department ofAgriculture, Washington, D. C. 



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



SEWALL WRIGHT, Senior Animal Husbandman in Animal Genetics, Bureau of Animal Industry, D. S. Department 

 of Agriculture, Washington, D. C. 



COMMITTEES ON RESEARCH 



Plant Breeding CHARLES R. STOCKARD, SecreUry, Profc ;*or of 



Anatomy, Cornell Medical College, New York, 

 WALTER T. SWINGLE, Chairman, Physiologist ^ '^a'^V 

 in Charge of Crop Physiology and Breeding Investiga- 

 tions. Rureau of Plant Industry, U. S. Department of . . T^,?-,., frr^CIJXT Tl r «> .• /- 11 



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



in Charge of Crop Physiology and Breeding Investiga- ^ S;, ^^T^LE, Carnegie InsUtution of Washington, 



Uons. Rureau of Plant Industry, U. S. Department of , v'V^-?,°?.5-*,^x?^V^?'' ^'J^'^d. N- Y. 



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



A. B. STOUT, Director of Laboratories, New York Botan- „ A§"'^l','^x^,H^^T?^"A^i°°'*- . o 



ical Garden New York E. N. WENTWORTH, Armour & Company, Chicago, 



HERBERT J. WEBBER, Secretarv. Professor of - H^- m „ nwxixiv * ii jt 



Plant Breeding. Univenity of California, Director E. A. McILHENNY, Avery Island. La. 



of Citrus Substation and Dean of Graduate School _ 



of Tropical Agriculture, Riverside, Cal. EugeniCS 



S'^ n^on^i? SnSp" ^i^f*'' ^c'°°.'*w M FREDERICK ADAMS WOODS, Chairman, Ucturer 



H- HAROLD HUME, Glen Saint Mary Nurseries, on Biology, MassachusetU Institute of Technology. 



D 4 ttmSdc^S^'d V .01 .1. J- o 11 ADOLF MEYER. Vice<hiirroan, Professor of Piy- 



R. A EMERSOr* ProfMSor of Plant Breeding. ComeU chiatry, Johns liopkini University, and Director of 



n TT tovf'.!^t> f ' ( Di . D ^- n ^ . Henry Hipps Psychiatric Clinic, Jolins Hopkins Hos- 



^•7- .J<^,^ES Professor of Plant Breeding, Connecticut piul 'Baltiinore. Md. 



. Agricultural Eipenment Station New Haven, Conn. CHArLeS B. DAVENPORT, Secretary. Director 



AEi^w.^^^oUT^r^"' "• ^- Department of Department of ExnerimenUl EvoluUon (Carnegie 



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



Long Island. N. Y. 

 HOMER FOLKS. Secretary, Sute Charities Aid Asao- 



Animal Breedine dation. New York City. 



THOMAS W. SALMON, Medical Director. National 



LEON J COLE, Chairman, Professor of Genetics, Committee for Mental Hygiene, New York City. 



University of Winronsin, Madison, Wis EDWARD L. THORNDIKE. Professor of Educatiooal 



T. S. PALMER, Vice-Chairman, Assistant Chief of Ptychology, Columbia University. 



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



G««rt« Baola i'abliihinf Conpaar. Meossha. Wit. 



