746 



Reports of the Secretary of War, luith reconnoissances of routcs front San 



Antonio lo cl Paso by Brev. Lt. Col. J. E. Johnston etc. etc. July 



24, 1850. Washington 1850. 8. 

 Map of that part of the mineral lands adjacent to Iahe superior ceded lo 



the United States 1S42. Fol. 

 Map of the State of Florida. 1S46. Fol. 

 A. Wislizenus, Memoir ofatour to Northern Mexico in 1846 and 1847. 



Washington 1848. 8. 

 T. Butler King, Report on California, ib. 1850. 8. 

 Report of the Secretary of War, communicating Information in relation to 



the geology and topography of California, April 3, 1850. ib. 8. 

 Report of the Superintendent of the Coast Survey, showing the progress 



of that ivork during the year ending Nov. 1849. Dec. 27, 1849. 



ib. 8. 

 W. H. Emory, Notes of a military reconnoissance from Fort Leavenworth 



in Missouri to San Diego in California. With a Map. ib. 1848. S. 

 Report of the Secretary of War, communicating a Map of the Valley of 



Mexico from surveys by Lieut. Smith and Hardcastle Jan. 19, 



1849. ib. 8. 

 W. F. Lynch, Report of an examination of the Dead Sea. Febr. 26, 



1849. ib. 8. 

 Report by the Superintendent of the Coast Survey, on an application of 



the galvanic circuit lo an astronomical dock etc. Jan. 6, 1849. ib. 8. 

 Geological Report on the Copper Lands of lake superior land district, 



Michigan, May 16, 1850. ib. 8. 

 Report of Naval Commiltee on establishing a line of Mail Steamships to the 



ivestern coast of Africa etc. ib. 1850. 8. 



Memoirs of the American Academy of arts and sciences. New Series. Vol. 



IV. Part 2. Cambridge and Boston 1850. 4. 

 Astronomical Observations made during the year 1846 at the National 



Observatory, Washington: under the direction ofM. F. Maury etc. 



Vol. II. Washington 1851. 4. 

 Proceedings of the American philosophical Society. Vol. V. No. 45. 46. 



April-Dec. 1850. Jan -July 1851. 8. 

 Proceedings of the Academy of natural sciences of Philadelphia. Vol. V. 



No. 6-8. 1850-51. 8. 

 Charl. Girard, Essay on the Classification of Nemertes and Planariae. 8. 

 Lewis R. Gibbes, on the carcinological collect ions of the Cabinels of 



natural history in the United States. Charleston S. C. 1 850. 8. 

 Joseph Leidy, Special Anatomy of the Gasteropoda of the United States, 



with 16 Plates. 8. 

 , \, on Enlophyta in living animals. New Species of Entozoa. 



