157 



Types of Shape Determinations in Cucurbita Fruits," and the 

 other by Dr. Roger P. W'odehouse, of the Arlington Chemical 

 Company, on "Pollen Grains of the Ranunculaceae and Alisma- 

 taceae." Both of these papers stimulated considerable interest 

 and discussion. 



The meeting was adjourned at 5:00 p.m. 



J. S. K.\RLING, Secretary 



Meeting of May 5, 1936 



The meeting was called to order at the Museum of Natural 

 History at 8:25 p.m. by Second Vice-President F. E. Denny, 

 with 69 members and visitors present. Mr. H. Harold Hume, 

 Florida Agricultural Experiment Station, Gainesville, Florida, 

 was unanimously elected to membership, and Mr. H. B. 

 Fleischer was elected a field member. 



The scientific program consisted of an exceptionally well 

 illustrated lecture by Dr. M. A. Howe, Director of the New 

 York Botanical Garden, on "Diatoms: Microscopic Beauties," 

 and a film showing diatoms in motion and the acquiring of 

 diatomaceous earth in California was exhibited by the Johns 

 Manville Company. 



J. S. Karling, Secretary 



Meeting of May 20, 1936 



The meeting was called to order at 3:30 p.m. at the New 

 York Botanical Garden, the president presiding and forty-five 

 members present. The minutes of the meetings of April 15 and 

 May 5 were read and adopted. 



The scientific part of the program consisted of two addresses: 

 one by Capt. B. Kingdon Ward, eminent horticulturalist and 

 explorer of plants, on the "Flora of Tibet," and the other by 

 Dr. Michael Levine on the "Production of Cancer on Plants 

 by Chemical Agents." Both of these addresses were well illus- 

 trated by lantern slides and stimulated a great deal of interest 

 and discussion. 



The meeting was adjourned at 5:00 p.m. 



J. S. Karling, Secretary 



