LXIX 



Eoute for a Railroad from the Mississippi River to the pacific Ocean. Made under 

 the Direction of the Secretary of War, in 1853 — 56. Vol. II — VIII. Washington 

 1855—57. 4. (From the War- Departement.) 



Map of the Basin of La Plata, based upon the Results of the Expedition under the 

 Command of Thom. J. Page, U. S. N., in the Years 1853 — 56 and of the adjacent 

 Countries. (Map from the Departement of State Washington.) 



Proceedings of the American Academy of Arts and Sciences. Vol. III. 1857. p. 89 — 416. 

 Boston and Cambridge 1857. 8. (From the Am er. Acad. of Arts and Sc.) 



Proceedings of the American Association for the Advancement of Science. 10 — 11 Mee- 

 ting, held at Albany and Montreal 1856, 1857. Cambridge 1857, 58. 8. (From the 

 Amer. Assoc.) 



Memoires of the American Academy etc. Vol. VI P. 2. Boston 1859. 4. 



Lovering, Prof. Jos., An Account of the Magnetic Observations made at the Observa- 



tory of Harvard University, Cambridge. Cambridge 1845. 4. (Extracted from the 



Memoirs of the Amer. Acad.) (From the Author.) 

 Made a brief communication , describing new experiments and modes of illustra- 



ting the laws of Light and Sound. 8. (Extracted from the Proceed. of the Amer. 



Acad. Vol. IDT. p. 169.) (From the Author.) 

 Hall, Jonath. P., Register of the Thermometer for 36 Years, from 1821 to 1856, to 



which is added the Quantity of Rain falling in Boston, Mass., for 34 Years, from 



1823 to 1856. 4. (Extr. from the Memoirs of the Amer. Acad. Vol. VI, New Ser.) 



(From the Prof. J. Lovering.) 

 The American Journal of Science and Arts. Conducted by Professors B. Silliman, B. Sil- 



liman jr. and James D. Dana. Second Series. Vol. XXTV— XXV. No. 70—75. 1857, 



1858. New Häven. 8. (From the Prof. Dana.) 

 Journal of the Academy of Natural Sciences of Philadelphia. New Series, Vol. IH Part. IV. 



Philadelphia 1858. 4. (From the Acad. of Nat. Sc.) 

 Proceedings of the Academy of Natural Sciences of Philadelphia. Vol. L\. No. 8 — 16. 



p. 101—228. 1857; Vol. X. No. 1—9. p. 1 — 128. 1858. Philadelphia 1857, 58. 8. 



(From the Acad. of Nat. Sc.) 

 39 Annual Report of „the Controllers of the public Schools of the first School District 



of Pennsylvania", comprising the City of Philadelphia, for the Year 1857. Philadel- 

 phia 1858. 8. (From the Prof. John S. Hart, Phil.) 

 Leidy, Dr. Jos., Notice of remains of extinct Vertebrata, from the Valley of the Nio- 



brara River. (Extract from the Proceed. of the Acad. of Nat. Sc. March 1858). Phi- 

 ladelphia 1858. 8. (From the Author.) 

 Miller, Mr. Hugh, Notice of some remarks by the late. Philadelphia 1857. 8. (From 



the Author.) 



