XXIII 



ceedings of Academy of Natural Sciences of Philadelphia. June, 



1854. ) 8. 



Hairtl. Spencer F., Characteristics of some [New Species of Mam- 

 malia, collected by the U. S. and iMexican Houndary Survey, 

 Major YV. II. Emory, U. S. A. Commissioner. Collected by 

 Surveys of R. 11. Houte to Pacific. (From the Proc. oi the 

 Acad. of Nat. Sc. of Philad., April. 1855.) 8. 



Cassin, John. Notes on North American Falconidae, with descri- 

 ptions of new Species. (From the Proc. of the Acad. of Nat. 

 Sc. of Philad., February, 1855.) 8. 



Le Conte, John L. Med. Dr. Notes on the Classification of the 

 Carabidae of the United States. Read March 18, 1853. (From 

 the Transactions of the An;erican Philosophical Society. Vol. X., 

 May, 1853.) 4. (From the author.) 



— — Synopsis of the Pyrochroides of the United States. (From 

 the Proc. of the Acad. of Nat. Sc. of Philad. Vol. VII. Febr., 



1855. ) 8. (From (he author.) 



— — Analytical table of Species of Hydroporus found in the 

 United States, with Descriptions of new Species. (From the 

 Proc. of the Acad. of Nat. Sc. of Philad., April, 1855.) 8. 

 (From the author.) 



Cooke, jr., Josiah P., A. M., Er\ing Prof. of Chem. in Harv. Univ. 

 On two new Crystalline Compounds of Zinc and Antimony, 

 and on the Cause of the Variation of Composition observed 

 in their Crystals. Communicattd June 27, 1854. (From the 

 Memoirs of the American Academy, New Series. Vol. V.) 

 Cambridge. 1855. 4. (From the author.) 



Dana, James D. Chemical Contributions to Mineralogy. (Extracted 

 from the American Journal of Science and Arts, Vol. XVIII. 

 Second Serie, July, 1854.) 8. (From the author.) 



— — On the Ilomoeomorphism of Mineral Species of the Tri- 

 metric System. (Extr. from the Amer. Journ. of Science and 

 Arts, 2nd Ser. Vol. XVIII. July, 1834.) 8. (From the author.) 



— — Contributions to Mineralogy. (Extr. from the Amer. Journ. 

 ofScand Arts, 2nd Ser. Vol. XVIII. Spt., 1854.) 8. (Fr.theauth.) 



— — Contributions to Mineralogy. (Extr. from the Amer. 

 Journ. of Science and Arts, 2»<l Ser. Vol. XVIII. No\br., 

 1S54.) 8. (From the author.) 



— — Description of a New Species of Cnptopoilia (Crypt. oc- 

 cidentalis) from California. (Extr. from the Amer. Journ. of 

 Science and Arts, 2nd Ser. Vol. XVIII. Nv., 1854.) 8. (Fr.theauth.) 



lnstitutum 

 Smithsonianum 

 Washingtonense. 



