136 



A specimen of flexible sand-stone from the neighborhood 

 of Agra, Hindostan, was presented in the name of Mr. W. 

 S. Eullard. 



Mr. Bouve presented a fossil coral, from Trenton Falls, 

 in the name of Mr. John Perry, Jr. 



A number of insects well preserved in gum copal, were 

 exhibited by Dr. Gould in the name of Thomas W. Taylor, 

 of Salem. 



Dr. Cabot announced the addition of the following birds 

 to the Society's collection, and exhibited the specimens, 

 viz.: Mergus castor, male, presented by himself; Anas 

 boschas, received in exchange ; Artamus leucorhynchus, 

 from Mr. Gassett ; Anous stolidus ? exchange; Sylvia pete- 

 chia, adult and young male, S. discolor^ male, iS". striata, 

 male and female, S. parus, Anthus ludovicianus, Troglo- 

 dytes hyemalis, from John Bethune, Esq., a member of the 

 Society ; a male wild Turkey, Meleagi'is gallopavo, from 

 Col. Jaques of Charlestown, Mass. ; and a White-fronted 

 Goose, male, Anser erythropus, shot at Q,uincy, Mass. 



Capt. N. E. Atwood of Provincetown, Mass., presented 

 a female Harlequin Duck, Fuligula histronica. 



April 18, 1849. 

 The President in the Chair. 



Present, twenty-four members. 



Mr. Burnett read a paper on the power of resisting cold 

 possessed by some of the lower animals. 



He had come to the conclusion, by experiments on fish, 

 leeches, spiders, &c., that although these animals might become 

 quite stiff by exposure to extreme cold without losing their vital- 



