70 



Dr. Welnland suggested that the capsules should be examined 

 in those animals which change color in the spring and fall. 



The Corresponding Secretary read the following letters 

 recently received : — 



From the Royal Society, London, March 8th, Royal 

 Geographical Society of London, Nov. 17th, 1855, and 

 the Regents of the University of the State of New York, 

 acknowledging the receipt of the Society's publications; 

 Die K. Bayerische Akadetnie der Wissenschaften, June 

 20th, 1856, presenting certain books; Reale Accademia 

 delle Scienze di Napoli, April 10th, 1854, presenting its 

 publications, and acknowledging the receipt of those 

 of the Society ; Royal Geographical Society, London, 

 June 12th, 1856, presenting its Journal, Vol. 25th ; So- 

 cidte de Geographic, Dec. 31st, 1856, acknowledging 

 receipt of the Proceedings of the Society ; and from the 

 Secretary of State, Oct. 2d, 1856, forwarding a box of 

 books, in compliance with the request of Dr. John Mc- 

 Clelland, Calcutta. 



M. Auguste de Jolis, President of the Society of 

 Natural History, at Cherbourg, France, was elected a 

 Corresponding Member. 



December' 3, 1856. 



The President in the Chair. 



Mr. Sprague read a letter from Prof. Baird, and made 

 a final communication upon the expedition of Mr. 

 Samuels to California. The subject of a publication of 

 the results of the expedition was referred to the publish- 

 ing committee. 



