lew.] MINUTES. 37 



"Observations on Columbium and Tantalum," by Dr. 

 Edgar F. Smith, of Philadelphia. 



"The Effects Upon Metabolism of Preservatives Added to 

 Foods," by Dr. Harvey W. Wiley, of Washington. 



"The Use of the Rotating Anode and Mercury Cathode in 

 Electro-Analysis," by Lily G. Kollock and Dr. Edgar F. 

 Smith, of Philadelphia. 



Afternoon Session. 

 Vice-President Scott in the Chair. 



The following papers were read : 



" The Rounded Sands of Palaeozoic Formations," by Mr. 

 Gilbert van Ingen, of Princeton. 



" A Review of Lacroix's Work on the Montagne Pelee," by 

 Prof. Angelo Heilprin, of Philadelphia. 



" Notes on the Genus Sinopa," by Dr. W. D. Matthew, 

 of Princeton. 



"The Mammalian Fauna of the Fort Union Beds," by Mr. 

 M. S. Farr, of Princeton. 



"The Marsupial Fauna of the Santa Cruz Beds," by Mr. 

 W. J. Sinclair, of Princeton. 



"The Mutual Affinities of the Species of the Genus Cam- 

 barus," by Dr. A. E. Ortmann, of Pittsburgh. 



"The Faunal Relations of the Ryu-kyu (Loo Choo) 

 Islands," by Dr. Henry A. Pilsbry, of Philadelphia. 



Evening Session. 

 Prof. Russell H. Chittenden, of New Haven, read a paper 

 on " Reason and Intelligence vs. Custom and Habit in the 

 Nutrition of the Body." 



April 14, 

 Morning Session. 

 Vice-President Newcomb in the Chair. 

 The following papers were read : 



"The Secular Perturbations of the Earth," by Mr. Eric 

 Doolittle, of Upper Darby, Pa. 



