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Fourth meteorological report ; by prof. J. Espy. Washington, 

 •1857; 1 vol. in-4°. 



Proceedings of the american Academy of arts and sciences. 

 Vol. III. P. 249 jusqu'à la fin. Vol. IV. P. 1 à 88. Baston, 1858; 

 in-8°. 



Proceedings of the american Association for the advancement 

 of science. X-XI meetings. Cambridge, 1857; 2 vol. in-8°. 



The first and second annual reports ofthe geological survey of 

 Missouri ; by G.-C. Swallow. Columbia, 1855; 1 vol. in-8°. 



The rocks of Kansas, by G.-C. Swallow and F. Hawn; with 

 descriptions ofnew permian fossils, by G.-C. Swallow. S'-Louis, 

 1858; 1 broch. in-8°. 



Descriptions ofnew fossils, from the coal mea sures of Mis- 

 souri and Kansas ;by B.-F. Shumard and G.-C. Swallow. S 1 Louis, 

 1 858 ; 1 broch. in-8°. 



Thirty-ninth annual report of the controllers of the public 

 scîiools ofthe first school district of Pennsylvania , comprising 

 the city of Philadelphia, for the year ending december 31, 1857. 

 Philadelphie, 1858; 1 vol. in-8°. 



Eleventh annual report of the board of agriculture of the state 

 ofOhio. Columbus, 1857; 1 vol. in-8°. 



Transactions of the Michigan state agricultural Society for 

 4856. Vol. VIII. Lansing, 1857; 1 vol. in-8°. 



Academy of nalural sciences of Philadelphia : — Journal. 

 New séries. Vol. III. Part 4; — ■ Proceedings. Index of vol. VIII. 

 Vol. IX. Feuilles 8-16. Vol. X. Feuilles 1-9. Philadelphie, 1856- 

 1858; 1 broch. in-4° et 5 broch. in-8°. 



Proceedings of the american philosophical Society. Vol. VI. 

 N os 57 et 58. Philadelphie, 1857; 2 broch. in-8°. 



Physical and celestial mechanics ;by Benjamin Peirce. Boston, 

 1855; 1 vol. in-4°. 



Gauss's theoria motus ; by Ch. H. Davis. Boston, 1857; 1 vol. 

 in-4°. 



Contributions to the natural history of the United States of 



