'222 PROCEEDINGS OP THE ACADEMY OP 



''Notice upon new genera and new species of ilariae and Fresli-water Fishes 

 ofWestern North America." 



By Edward Hallowell, M. D., five, to wit : "Note on the collection of Reptiles 

 from Texas, recently presented to the Academy of Natural Sciences, by Dr. A. L. 

 Heermann ;"" Description of a new genus of colubriform Serpents from Cali- 

 fornia ; " "Notice of a Collection of Reptiles from the Gaboon country, Western 

 Africa, made by Dr. Henry A. Ford ; " " On Trigonophys rugiceps; " " On the 

 caduciate Urodele Batrachians." 



By F. V. Hayden, M. D., two, to wit : " Notes explanatory of a map and sec- 

 tion illustrating the geological structure of the country bordering on the Mis- 

 souri river, etc. ;" "Geological notes on the Mauvaises Terres of White River." 



By Theodore C. Hilgard, M. D., " Classification of the Vegetable Kingdom." 



By C. R. Kennerly, " Description of a new species of Cypselus, etc." 



By J. P. Eirtland, M. D., " On the Larva of Thyreus Abbottii." 



By Isaac Lea, L.L. D., seven, to wit: "Descriptions of thirteen new species of 

 Uniones from Georgia; " "Descriptions of twelve new species of Naiades from 

 North Carolina;" "Descriptions of six new species of Uniones from Alabama;" 

 " Descriptions of eight new species of Naiades from various parts of the United 

 States;" "Descriptions of three new exotic species of Naiades ;" " Descriptions 

 of six new species of fresh water and land shells ; " "Descriptions of twenty-seven 

 new species of Uniones from Georgia." 



By Major John LeConte, two, to wit : " On three new species of Vesperti- 

 lionidse ; " " Observations on the Wild Turkey." 



By John L. LeConte, M. D., four, to wit : " Catalogue of the species of Bem- 

 bidium found in the LTnited States and contiguous northern regions;" "Index 

 to the Buprestidas of the United States, described in the work of Laporte and 

 Gory, with notes ; " " Descriptions of several new Mammals from Western 

 Africa ; " " Synopsis of the species of Clivina and allied genera, inhabiting the 

 United States " 



By Joseph Leidy, M. D., six, to wit : " Remarks on certain extinct species of 

 Fishes; " " Notice of remains of extinct Turtles from New Jersey, etc. ;" "Notices 

 of extinct Vertebrata, discovered by Dr. F. V. Hayden, etc. ; " " List of extinct 

 Vertebrata, the remains of which have been discovered in the region of the Mis- 

 souri, with remarks on their geological age;" "Notices of extinct Fishes;" 

 " Rectification of the references of the extinct Mammalian Genera of Nebraska." 



By F. B. Meek and F. V. Hayden, M. D., " Explorations under the War De- 

 partment. Descriptions of new Cretaceous and Tertiary Fossils collected by Dr. 

 F. V. Hayden in Nebraska, etc." 



By William Stimpson, two, to wit: " Prodromus descriptionis animalium 

 Gvertebratorum, quae in Expeditione &,d Oceanum Pacificum Septentrionalem, a 

 Republica Federata missa, Cadwaladaro Ringgold et Johanne Rodgers Ducibus, 

 observavit et descripsit W. Stimpson, (two papers.) 



By William J. Taylor, four, to wit: "Aluminium, the progress in its mani- 

 pulation ; " " Investigation of the rock Guano from the islands of the Carribean 

 Sea ; " " Examination of a Nickel Meteorite from Okkitebaha county, Miss. ; " 

 " Examination of Enargite from New Granada." 



By Philip R. Uhler, " Contributions to the Neuropterology of the United 

 States." 



All of which is respectfully submitted by 



B. Howard Rand, M. D. 



Recording Secretary. 

 Nov. 3Qtk, 1857. 



The Librarian read the following Annual Report : 



[December, 



