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Ave., Montreal, Canada; Mr. Clyde H. Jones, Department of 

 Botany, Ohio State University, Columbus, O. ; Miss Georgiana M, 

 Lawrence, 2 East 21st St., Brooklyn, N. Y. ; Dr. Henry H. M. 

 Lyle, 1217 Park Ave., New York; Mr. Ray E. Penn, 642 Tenth 

 Ave., Honolulu, Hawaii ; and Dr. John W. Roberts, U. S. Horti- 

 cultural Station, Beltsville, Md. 



Associate: Miss Lora Bond, Botany Department, Wellesley 

 College, Wellesley, Mass. ; and Mr. James Kingston McGrath, 717 

 West 177th St., New York. 



The President appointed the following members of the Torrey 

 Club as delegates to the Eighth American Scientific Congress to be 

 held in Washington, D. C, May 10-18 : 



Section II — Biological Sciences : Dr. Harold W. Rickett, New 

 York Botanical Garden; Dr. Edmund H. Fulling, New York 

 Botanical Garden; Prof. Ernst E. Naylor, University of Missouri, 

 Columbia, Mo. (temporary address. New York Botanical Garden) ; 

 Dr. P. W. Zimmerman, Boyce Thompson Institute for Plant Re- 

 search, Yonkers, N. Y. ; Prof. Burton E. Livingston, Johns Hopkins 

 University, Baltimore, Md. ; Dr. Charles Thom, Bureau of Plant 

 Industry, Washington, D. C. 



Section IV — Agriculture and Conservation: Dr. John Steven- 

 son, Bureau of Plant Industry, Washington, D. C. ; Dr. Frank D. 

 Kern, Pennsylvania State College, State College, Pa. ; Dr. Leon 

 Grodsinsky, Ministerio de Agriculture, Division de Fitopathologia, 

 Buenos Aires, Argentine. 



Section V — Public Health and Medicine : Dr. W. S. Thomas, 

 1141 Fifth Ave., New York; Dr. J. Gardner Hopkins, College of 

 Physicians and Surgeons, Columbia University, New York. 



Section VI — Physical and Chemical Sciences : Dr. William J. 

 Robbins, New York Botanical Garden. 



The scientific program consisted of a lecture on "Light and 

 Temperature on the Growth of Flowering Plants," by Dr. John M. 

 Arthur of Boyce Thompson Institute for Plant Research, Inc. 

 The speaker's abstract follows : 



"Both dry weight and flower production of plants depend upon such factors 

 as light intensity, day length, temperature, and carbon dioxide supply. Sun- 

 light in May, June, and July is too high in intensity for maximum dry weight 

 production. When plants are grown under shading cloth at this time, which 

 reduces sunlight by twenty-five per cent, more dry weight of plant tissue is 



