2S 



EXCHANGES. 

 GEOLOGICAL DEPARTMENT. 



G. F. KUNZ, Hoboken, N. J. 



56 specimens of Miscellaneous Minerals mostly from Magnet Cove, Ark. 



H. STOCKBRIDGE, Jr., Baltimore, Md. 



3 specimens of Enstatite from Bare Hills near Baltimore, Md. 



J. W. DEEMS, Brooklyn, N. Y. 



20 Miscellaneous Minerals for Cabinet. 

 F. A. SAMPSON, Sedalia, Mo. 



35 specimens of Cretaceous and Carboniferous Fossils, in exchange for 

 Bulletins. 



GEORGE CASWELL, Dayton, Ohio. 



80 specimens of Clinton Group and Lower Silurian Fossils from Dayton v 

 Ohio, in exchange for Bulletins. 

 DANIEL CLARK, Mass. 



12 specimens of Garnets and Gibsites from Richmond, Mass. 



LIBPABY. 



A. E. FOOTE, Philadelphia, Pa. 



Preliminary Report on the Natural History of Vermont. — Young. 



Second Annual Report. Geology of the Public Lands, Maine and Massa- 

 chusetts. — Jackson. 



Report on Illinois Coals. — Norwood. 



Parker's Exploring Tour beyond the Rocky Mountains. 



Plates to accompany the Second Annual Report on the Geological Survey 

 of New York. 1838. 



List of Elevations. — Gannett. 



Massachusetts Agricultural Reports. 1856, 1863. 

 Prof. A. S. BICKMORE, New York. 



Egyptian Obelisks. — Gorringe. 



Dana's Manual of Geology. Second edition. 

 S. L. ELLIOT, Esq., New York. 



Skinner on Agriculture. 3 volumes. 



Revue Critique des Oiseaux d'Europe. — Schlegel. 



Annelida Chfetopoda of the Virginian Coast. — Webster. 



Morrell's Voyages and Discoveries. 



Statistics of Coal.— Taylor. 



Northwestern Wyoming, including Yellowstone National Park. — Jones. 

 1873. 



Raymond's Mineral Resources west of the Rocky Mountains. 1870, 1872, 

 1873, 1S74, 1875, 1876. 



Topographical Survey of the Adirondack Region of New York. — Colvin. 



Reports— First, 1873. Second, 1873-74. Third-Seventh, 1874-79. 



Reports of the Inspector of Mines of Pa. 1875, 1877. 



Hand-Book of Virginia. — Pollard. 



Report on the Geological Survey of the Lead Region of the State of 

 Wisconsin. — Murrish. 



Communication between the Atlantic and Pacific Oceans, etc. — Moro. 



Report of a Geological Reconnoissance of Arkansas. 1859-60. — Owen. 



Transactions of the Albany Institute. Vol. VI. 



