275 



Observatorj' of Eussia, requesting Vols. I-IX Trans. A. P. S., 

 to complete its series, and Proc. Nos. 15, 62, 73, 74, 78, et seq., 

 which request the Secretaries were instructed to grant. 



Letters of acknowledgment were received from the Bu- 

 reau des Longitudes (xiii. 3,) (81) ;■ Venetian Institute of 

 Sciences (77), and Leeds Philosophical Society. 



Donations for the Library were received from the Institu- 

 tions at Milan and Venice, S. S. Zantedeschi, Alianelli, and 

 Ghirardini of Padua, Naples, and Milan, the Kussian C. P. 

 Observatory ; the Academy at Berlin ; Geographical Societ}" 

 at Paris ; London Chemical, Leeds Philosophical, and Dublin 

 Eoyal Societies ; Dr. Haughton ; Gard. G. Hubbard, of Cam- 

 bridge, Mass.; the Boston N. H. Society; Franklin Institute; 

 College of Physicians of Philadelphia, and the Librarian of 

 Congress. 



The Librarian reported the purchase of seven volumes of 

 Comptes Eendus, (49, 50, 51, 52 ; 54, 55, 56,) for the Librarj^ 



A letter was received announcing the decease of Prof. A. 

 J. Erdmann, Director of the Geological Survey of Sweden, at 

 Stockholm, Dec. 1, aged 55. 



A communication was read by the Secretary entitled, 

 "Notices and Descriptions of Fossils from the Marshall 

 Group of the Western States ; with Notes on Fossils from 

 other Formations ; by Alexander Winchell, Director of the 

 Geological Survey of Michigan." (See page 245.) 



On motion of Prof. Cresson, the paper and section were re- 

 ferred to the Secretaries, with power to take order. 



Prof Cope communicated for the Proceedings a Paper on 

 some Etheostomine Perch from Tennessee, and for the Trans- 

 actions, 



A Paper entitled, " On some Eeptilia of the Cretaceous 

 Formation of the United States," which, on motion of Dr. 

 Horn, was referred to a committee, consisting of Mr. Lesley, 

 Dr. Horn, and Dr. Eushenberger. Prof Cope illustrated this 

 paper by offering for the examination of the members present, 

 unique specimens of a sauroid, found in the U. S. Armory 

 grounds at Springfield, and described by Dr. Hitchcock, the 

 true structure of which has but recently been made out, and 

 explains the peculiar 8 -shaped terminal impression so often 



