149 
Af ISiiiitlisoiiiaii Institution i Wasliington. 
Smithsonian Contributions to Knowledge. Vol. II. Washington 1851 
4:o. (m. t.) — Appendix l to Vol. III. 4;o. 
Message from the President of the U. S., Dec. 1849. P. I—III. 
Wash. 1849. 8:o. (m. t.) 
Fourth annual report of the board of regents,' for the year 1849. 
Washingt. 1850. 8:o. 
Jewett, Ch. c., Notices of public libraries in the U. S. Washington 
1851. 8:o. 
Gould, b. å., Report on the history of the discovery of Neptune. 
Washington 1850. 8:o. 
15 särskilta public reports. 8:o. Med plancher och kartor. 
Af tlie American Association for tlic advanccnicnt 
of scicnec* 
Proceedings of the fourth meeting 1850. Wash. 1851. 8:o. 
Af American Aeadcmy of Arts and Sciences. 
Memoirs. Vol. IV. P. 2. Cambridge 1850. 4:o. 
Af Academy of Aatiiral Sciences of PJiiladelfiliia. 
Proceedings. Vol. V. N:o 6—8. Philad. 1850, 51. 8:o. 
Af jVliiseum of iiractical g^eology and geoloi^ical 
siirvey i liondon. 
Records of the school of mines. Vol. I. P. I. Lond. 1852. 8:o. 
Af Hr Si. lica i Pltiladelpiiia. 
ScHOOLcRAFT, H., Historical and statistical information resp. the history 
of Indian tribes of the U. S. P. I. Philad. 1851. 4:o. (m. t.) 
Af Hr Hausmann i Grottingen. 
Götting. Gelehrte Anzeigen. 1851. 8:o. 
Nachrichten von der Universitet &c. zu Göttingen 1851. 8:o. 
Hausmann, J. Fr. L. , Bemerkungen uber den Zirkonsyenit. Göttingen 
1852. 4:o. 
Af Författarne* 
Morton, S. G., Addit. observations on hybridity in animals. Charles- 
ton 1850. 8:o. 
— — Biograph. notice of the late G. M. Clellan. Philad. 1849. 8:o. 
Thomson, W. , Fyra mindre afhandlingar i fysikaliska ämnen. 
Af Hr. S. liO^én. 
Gervais, P., Zoologie et Paléontologie francaises. Livr. 1 —8. Paris 
1850, 51. Text in 4;o, Atlas in fol. 
