99 [White. 



The experiment was repeated with thirty vessels in three 

 series of ten, each with exactly similar results. Thus it ap- 

 pears that a given organic solution does not become invaded 

 any sooner when boiled infusoria are added to it than when 

 none are added ; while portions of the same solution to which 

 infusoria that have not been boiled are added become invaded 

 in the course of twenty-four hours, the others requiring three 

 days. 



The following gentlemen were elected members : 



As Honorary Member : — Prof Joseph Henry of the Smith- 

 sonian Institution. 



As Corresponding Members : — Prof Oliver Marcy, of the 

 Northwestern University, Chicago, Prof Alexander Win- 

 chell, of the University of Michigan, Prof J. D. Whitney, of 

 the California Geol. Survey, and Mr. D. G. Elliott, of New 

 York City. 



As Resident Members : — Messrs. B. W. Gilbert, Thomas 

 McHayes, Phihp S. Sprague of Quincy, N". Willis Bumstead, 

 Paul M. Gidney and James P. Babcock. 



February 15, 1865. 

 The President in the chair. 



Thirty-five members present. 



Dr. J. C. White exhibited a series of dissected skulls of 

 man, the apes, and monkeys, explaining the j^rincipal points 

 of the discussions which have recently attracted so much 

 attention in England and elsewhere, upon the relations of 

 man to the higher apes, based upon the differences of the 

 brain structure. He pointed out in particular the relation of 

 the cerebrum to the cerebellum, showing that not only in 

 man, but also, contrary to the assertions of Owen, in nearly 

 the whole series of the quadrumana except the lowest, the 

 cerebral hemispheres completely covered and even over- 

 lapped the cerebellum ; and since the separation of man, by 



