OF ARTS AND SCIENCES. 155 



Lee, U. S. Corps Topog. Engineers. 4to pamph. Washington, 

 1848. From the Topographical Bureau. 



Charles Martins. Instructions pour I'Observation des Trombes 

 Terrestres. (Extr. de PAnnuaire Meteorologique de la France, 1848.) 

 From the Author. 



Edward Desor. Embryology of Nemertes, with an Appendix on 

 the Embryonic Development of Polynoe. (Extr. Jour. Bost. Nat. 

 Hist. Society.) From the Author. 



American Journal of Science and Arts. No. 19. New Series. 

 For January, 1848. From the Editors. 



Abhandlungen der Konigl. Preuss. Akademie der Wissenschaften zu 

 Berlin : aus dem Jahre 1846. 4to. Berlin, 1848. From the Berlin 

 Academy. 



Monatsbericht der Konigl. Preuss. Akademie der Wissenschaften zu 

 Berlin. July -Dec, 1847, and January - June, 1848. 8vo. From 

 the Berlin Academy. 



Denkschriften der Allgemeinen Schweitzerschen Gesellschaft fiir 

 die gesammten Naturwissenschaften. Band I. 4to. Zurich, 1829 - 

 33. Neue Denkschriften Schweitz. Gesellsch., etc. Bande I. - IX. 

 4to. Neuchatel, 1837-47. From the Helvetian Natural History 

 Society. 



Francis Wayland, D. D. The Elements of Moral Science. Bos- 

 ton, 1849. — The Elements of Political Economy. Boston, 1848. — 

 Thoughts on the Present Collegiate System in the United States. 

 Boston, 1842. — Sermons delivered in the Chapel of Brown Uni- 

 versity. Boston, 1849. — 12mo. From the Author. 



Smithsonian Contributions to Knowledge. Occultations visible in 

 the United States during 1849, computed under the Direction and at 

 the Expense of the Institution, by John Downes. 4to pamph. Wash- 

 ington, 1848. From the Smithsonian Institution. 



Proceedings of the Academy of Natural Sciences, Philadelphia. 

 Vol. IV., Nos. 3-7. 8vo. 1848. 



Charter of the Boston and Lowell Railroad Corporation, and Re- 

 port of the Directors to the Legislature, 1848. 8vo pamph. Boston, 

 1849. 



Edward Everett. Correspondence relative to the Award of the King 

 of Denmark's Comet-Medal to Miss Maria Mitchell of Nantucket, for 

 the Discovery of a Telescopic Comet, on the 1st of October, 1847. 

 8vo pamph. [Not published.] Cambridge, 1849. From the Author, 



