viii MINUTES. 



The following papers were read : 



" Notes on the Ecology of the Clovers (Trifolium)," by John W. 

 Harshberger, A.B., Ph.D., Professor of Botany, University of 

 Pennsylvania. 



" The Cytoplasm in Development and Heredity," by E. G. Conk- 

 lin, Ph.D., Sc.D., Professor of Biology, Princeton University. 



" The Supposed Serial Arrangement of the Genes, and its Rela- 

 tion to Theories of Crossing-over in Inheritance," by H. S. 

 Jennings, Ph.D., LL.D., Professor of Zoology and Director of 

 the Zoological Laboratory, Johns Hopkins University. 



" The Relation of the Retinal Image to Animal Reactions," by 

 G. H. Parker, S.D., Prof, of Zool., Harvard Univ. 



" Parallel Mutations in CEnothera," by George H. Shull, B.S., 

 Ph.D., Professor of Biology, Princeton University. 



" Some Climatic and Topographic Characters in the Rings of the 

 Yellow Pines and Sequoias of the Southwest," by A. E. Doug- 

 lass, D.Sc, Director of Steward Observatory, University of 

 Arizona. (Introduced by Dr. D. T. MacDougal.) 



" The Probable Action of Lipoidals in Growth," by D. T. Mac- 

 Dougal, M.A., Ph.D., LL.D., Director of the Department of 

 Botanical Research, Carnegie Institution of Washington, Tuc- 

 son, Arizona, discussed by Dr. Ernest W. Brown. 



" A Possible Explanation of Eocene Climates," by Edward W. 

 Berry, Professor "of Palaeontology, Johns Hopkins University. 



Friday Evening. 



Mr. Vernon Kellogg spoke on "The Power and Impotence of 

 Man." 



Saturday Morning, April 22. 



Executive Session, 10 O'Clock. 



William B. Scott, Sc.D., LL.D., President, in the Chair. 



Prof. Edward Capps and Dr. T. B. Osborne, recently elected 



members, subscribed the Laws and were admitted into the Society. 



The Society proceeded to the election of Officers and Councillors 



