u 



peletia) and other composite shrubs. The return journey to the 

 west coast also furnished features of unfaihng interest. 



Dr. Michael Levine gave a brief account of some aspects of 

 his summer's work in the laboratory of the Alontefiore Hospital, 

 where he was engaged in some comparisons of animal cancers 

 and the tumors, galls, or cancers of plants. In the tumors or 

 galls of plants there appear to be no giant cells and multipolar 

 spindles such as occur in animal cancers. And there is no con- 

 clusive proof that the so-called "strands" in animal cancer have 

 any homologies in the cancer-like growths of plants, though 

 Ricinus has something resembling these strands. Radium 

 emanations were found to inhibit the growth of tumors in 

 Ricinus. 



Mr. Edgar Nelson made some remarks on his work in collecting 

 the pollen of various plants for the use of physicians who are 

 investigating the relation of various kinds of pollen to hay fever. 

 It appears that each victim of hay fever is affected by one 

 particular kind of pollen and that physicians now determine the 

 particular kind by experimental inoculations with extracts of 

 the pollens of the suspected species of plants. 



A^ARSHALL A. Howe, 



Secret-ary. 



Meeting of October 25, 1922 



The meeting of the above date was held in the morphological 

 laboratory of The New York Botanical Garden. 



Dr. Aniela Kozlowska, 120 Madison Avenue, was elected to 

 membership. 



The scientific program consisted of a discussion of "The 

 Cacti of the Atlantic Coastal Plain" by Dr. N. L. Britton and 

 Dr. John K. Small. Dr. Britton introduced the subject by 

 referring to the extensive systematic studies of the cactus family 

 that have been in progress for several years with the cooperation 

 of The New York Botanical Garden and the Carnegie Institution 

 of Washington. Three volumes of the beautifully illustrated 

 cactus monograph, embodying the results of these studies by 

 Drs. Britton and Rose, have already been issued, and the 

 manuscript for the fourth and final volume is now being sent to 

 the printers. Dr. Britton then referred to field studies of the 



