98 [September, 1846. 



Stated Meeting, September 15, 1846. 

 Vice President Morton in the Chair. 



DONATIONS TO LIBRARY. 



Memoirs of the American Academy of Arts and Sciences 

 of Boston. Vols. 1, 3, and Part 1, vol. 4, old series, and 

 vols. 1 and 2, new series. 4to. From the Academy. 



The Catalogue of Stars, by the British Association for the ad- 

 vancement of Science ; containing the mean right ascen- 

 sions, and north polar distances, of 8377 fixed stars, re- 

 duced to January 1, 1850 ; &c, &c. London, 1845. 4to. 

 From the British Association. 



American Journal of Science and Arts. New series, vol. 2, 

 No. 5, September, 1846. From the editors. 



Letters were read : 



From the Corresponding Secretary of the American Aca- 

 demy of Arts and Sciences of Boston, Dated August 26, 1846, 

 acknowledging the receipt of the volumes of the Proceedings 

 and Journal, authorized by a late resolution of the Academy, 

 to be presented to that Institution. 



From Mr. John H. Redfield, dated New York, September 

 11, 1846, and from Major Joseph Delafield, of same date, 

 severally acknowledging the receipt of their notices of elec- 

 tion as correspondents. 



From Dr. Z. Pitcher, of Detroit, dated September 3, 1846, 

 addressed to Dr. Morton, proposing to exchange duplicate 

 Bird skins, collected by the late Mr. Douglas Houghton. 

 Referred to the Zoological Committee. 



Dr. Joseph Leidy read a paper ' On the mechanism which 

 closes the membranous wings of the genus Locusta,' which 

 was referred to Mr. Haldeman, Dr. Hallowell, and Dr. Bridges. 



