XLIV 



Gray, Asa. Statistics of the Flora of Ihe Northern United States. 

 (Extracted from the Amer. Journ. of Sc. and Arts. Vol. XXII 

 and XXIII.) 8. 



Horner, Med. Dr., G. R. B. Medical Topography of Brazil and Uru- 

 guay; with incidental Reraarks. Philadelphia 1845. 8. (From 

 the Author.) 



Leidy. On Bathygnathus borealis, an extinct Saurian of the New Red 

 Sandstone of Prince Edwards Island. (Extracted from the Journ. 

 of the Acad. of Nat. Sc. of Philad. Vol. II.) 4. 



— — Med. Dr., Joseph. Contributions towards a Knowledge of 

 the Marine Invertebrate Fauna of the Coasts of Rhode Island and 

 New Jersey. (Extracted from the Journ. of the Acad of Nat. Sc. 

 of Philad. Vol. III. See. Ser.) Philadelphia 1855. 4. 



— — Descriptions of Some Remains of Fishes from the Carboni- 

 ferous and Devonian Formations of the United States. Descri- 

 ptions of Some Remains of Extinct Maramalia. (Extracted from 

 the Journ. of the Acad. of Nat. Sc. of Philad. Vol. III. See. Ser.) 

 Philadelphia 1856. 4. 



— — A Synopsis of Entozoa, and some of their Ecto- Congeners, 

 observed by the Aulhor. (From the Proceedings of the Acad. of 

 Nat. Sc. of Philad. Vol. VIII. Febr. 1856.) Philad. 1856. 8. 

 (From the Author.) 



Meek, F. B., and F. V. Hayden, Med. Dr. Descriptions of New Spe- 

 eles of Acephala and Gasteropoda from the Tertiary Formations 

 of Nebraska Territory, with some General Remarks on the Geo- 

 logy of the Country about the Sources of the 3Iissouri River. 

 Philadelphia 1856. 8. 



— — Descriptions of New Speeles of Acephala, Gasteropoda and 

 Cephalopoda, from the Cretaceous Formations of Nebraska Terri- 

 tory. (From the Proc. of the Acad. of Nat. Sc. of Philadelph. 

 April 1836.) Philadelphia 1836. 8. 



— — Descriptions of New fossil Speeles of Mollusca. (From the 

 Proc. of the Acad. of Nat. Sc. Nov. 1856.) Philad. !856. 8. 

 (From the Authors.) 



Norton's Literary Register; or: Annual Book List, for 1856. A Cata- 

 logue of Books. New- York 1856. 8. 



Simpson, William. Synopsis of the Marine Invertebrata of Grand Ma- 

 nan; or the Region about the moulh of the Bay of Fundy, New 

 Brunswick. (Extracted from the Smithsonian Contributions to 

 Knowledge.) Washington City 1853. 4. (From the Author.) 



Institutum Smithso- 

 nianum 

 Washingtonense. 



