76 [March, 



April \st. 

 Mr. Orb, President, in the Cbair. 



Letters were read 



From the Iinpcri:il Society of Naturalists of Moscow, dated Feb. 17, 

 185(i, announcing the celebration of its semi-centennial anniversary. 



From Mr. J. H Ilauch, dated Burlington, Iowa, March 11, 

 185G, acknowledging the receipt ot his notice of election as a Corres- 

 pondent. 



From the Lyceum of Natural History, of New York, dated March 

 20, 1856, acknowledging receipt of part 2, vol. 3, Lew series, of the 

 Journal. 



From the Trustees of the New York State Library, dated Albany, 

 ]\Iarch 26, 1856, acknowledging the receipt of the Proceedings of the 

 Academy. 



From the University of Wurtzburg, dated Dscember 21, 1855, 

 acknowledging the receipt of the Journal, vol. 3, part 1, and Proceed- 

 ings, vol. 7, Nos. 2 7. 



From Mr. T. M. Peters, dated Moulton, Alabama, March 18, 1856, 

 transmitting the donation to Museum, acknowledged this evening. 



From the Philadelphia Annual Conference of the Methodist Episco- 

 pal Church, dated March 31, 1856, returning acknowledgments for the 

 invitation from the Academy to visit the Museum. 



Dr. Leidy read a paper, for publication in the Proceedings, entitled 

 " Notices of three extinct Fishes." Referred to Mr. I. Lea, Dr. Wil- 

 son and Dr. Bridges. 



Mr. Lea presented a paper, intended for publication in the Journal, 

 entitled " On the Sandstone Fossils of the Connecticut river, by James 

 Deane, M. D. ;" which was referred to Mr. Lea, Dr. Leidy and Mr. 

 Messehert. 



Mr. Lea also presented the following papers for publication in the 

 Proceedings, viz : " Descriptions of new Fresh-water shells of Califor- 

 nia," " Description of a new species of Triquetra Klein," and " Descrip- 

 tion of a now genus of Naiades," all of which were referred to Dr. 

 Bridges, Dr. Wilson and Mr. Ilunson. 



April 8th. 

 Mr. Lea, Vice-President, in the Chair. 



Dr. Leidy presented a paper for publication in the Proceedings, 

 entitled " Notices of remains of extinct Mammalia discovered by Dr. F. 

 V. riayden in Nebraska Territory;" which was referred to Dr. Wilson, 

 Prof, llalderaan and Mr. Lesley. 



Mr. Cassin presented the following, which were unanimously adopted. 



Resolved, That the 7th vol., and so much as is published of the 8th 



vol. of the Proceedings of this Academy, and the last two Nos. of the 



Journal of the Academy, be presented to Sandwith Drinker, Esq., o 



Canton, China. 



