67 



3. "The ]Many-sided Effects of Animal Hormones and 

 Their Possil)le Resemblance to Plant Hormones." 

 Dr. Oscar Riddle, Carnegie Institute of Wash- 

 ington, Cold Spring Harbor, Long Island, New- 

 York. 

 12:30 to 2:00 p.m. Luncheon. Boyce Thompson Institute acting 

 as host. 

 2 :00 to 4 :30 p.m. Inspection tours of grounds and laboratories 

 conducted by members of the Staff. 

 Exhibits by investigators of the Institute. 

 8:30 p.m. Public Lecture. American Museum of Natural 

 History. "Plants Need Vitamins, Too." Dr. Wm. J. 

 Robbins, New York Botanical Garden. 



Thursday, June 25. 



10 :00 a.m. to 12 :30 p.m. Scientific Program. Brooklyn Botanic 



Garden, 1000 Washington Avenue, Brooklyn, New 



York. 



Sectional chairman : Dr. C. Stuart Gager. 

 "The History of the Brooklyn Botanic Garden.'' Dr. C. 



Stuart Gager, Director. 

 Symposium on Genetics. 



1. "Genetics, the Unifying Science in Biology." Dr. 



George H. Shull, Princeton University, Prince- 

 ton, New Jersey. 



2. "A Consideration of Criteria of Center of Origin." 



Dr. Stanley Cain, University of Tennessee, 

 Knoxville, Tennessee. 



3. "The Status of Plant Pathology in 1875 and in 



1942." Dr. George M. Reed, Brooklyn Botanic 

 Garden. 



4. "Technical Applications of Genetics in Plant Breed- 



ing in 75 Years." Dr. A. F. Blakeslee, Carnegie 

 Institution of Washington, Cold Spring Harbor, 

 Long Island, New York. 

 12:30 to 4:30 p.m. Luncheon. Brooklyn Botanic Garden. 50 

 cents. Inspection tours of gardens and laboratories con- 

 ducted by members of the Staff. 



