235 



the National Museum, and Geographical Society at Paris ; 

 MM. Rlitimeyer and Alb. Mliller at Basil ; the Meteoro- 

 logical Office and London Nature ; the Boston S. N. H. ; 

 Mr. E. D. Cope ; Prof. O. C. Marsh and Silliraan's Journal ; 

 the Franklin Institute ; Academy of Natural Sciences ; Col- 

 lege of Pharmacy; Penn Monthly; the Manager of the 

 House of Refuge ; Dr. I). C. Gilman, of Baltimore, and Mr. 

 S. S. Sherman, of Milwaukee. 



The Committee to consider the propriety of publishing the 

 medical theses presented at a previous meeting asked and 

 obtained leave to postpone their report for another fortnight. 



Prof. Frazer read a resume of the important points in the 

 memoir and maps of M. Delesse, entitled Lithologie des Fonds 

 de Mer. 



Prof. Frazer, also, made some preliminary remarks upon the 

 possible effects upon species and genera of living beings to 

 be supposed to arise from variations in the proportionate per- 

 centages of the chemical elements of their physical constitu- 

 tion, under the operation of the law of the " survival of the 

 fittest," leading to the conclusion that, were the chemistry 

 of organic bodies suitably modified, it might be possible for 

 them to exercise the functions of life in otherwise destruc- 

 tive circumstances, as, for example, in solar heat. Ho post- 

 poned the reading of a paper which he had prepared on the 

 subject to a future meeting. 



The reading of the pending nominations, &c. was post- 

 poned, and the meeting was adjourned. 



