MINUTES. ix 



Medical College, Philadelphia. (Introduced by Dr. Philip 

 B. Hawk.) 



" Cerebral Localization," by Harvey Cushing, A.M., M.D., Pro- 

 fessor of Surgery, Harvard University. (Introduced by Dr. 

 Keen.) 



" The Inorganic Constituents of Marine Invertebrates," by 

 Frank Wigglesworth Clarke, D.Sc, LL.D., Chief Chemist, 

 U. S. Geological Survey. 



" Some Properties of Vibrating Telephone Diaphragms," by 

 A. E. Kennelly, S.D., A.M., Professor of Electrical Engi- 

 neering, Harvard University, and H. O. Taylor, of Cam- 

 bridge. 



" (A) Dimensional Gases and the Law of Reflection of Gas 

 Molecules from Solid Walls; (B) The Metallic Reflection 

 of Light from a Gas," by Robert Williams Wood, A.B., 

 LL.D., Professor of Experimental Physics, Johns Hopkins 

 University. 



" Some Relations between Matter and Radiation," by William 

 Duane, A.M., Ph.D., Assistant Professor of Physics and Re- 

 search Fellow of the Cancer Commission, Harvard Univer- 

 sity. (Introduced by Prof. A. W. Goodspeed.) 



" Relation between Changes in Solar Activity and the Earth's 

 Magnetic Activity, 1902-1914," by Louis A. Bauer, Ph.D., 

 Sc.D., Director of the Department of Terrestrial Magnetism 

 of the Carnegie Institution, Washington, D. C. 



Evening Session — 8 o'clock. 



Leland Ossian Howard, Ph.D., M.D., LL.D., Chief of the Bureau 

 of Entomology, U. S. Dept. of Agriculture, gave an illustrated lec- 

 ture " On Some Disease-Bearing Insects." 



Saturday, April 75. 



Executive Session — p.jo o'clock. 



William W. Keen, M.D., LL.D., President, in the Chair. 

 The pending nominations for membership were read. 



