1869.] 43 [Annual Report. 



Ueber eine Reproduction der Siemens'schen Widerstands-Einheit. Von Franz 

 Dehms. 4to. Pamph. Berlin, 1868. From Dr. H. Loew. 



Report of the State Geologist (New Jersey), Prof. Geo. H. Cook, for the years 

 1864, 1867. 8vo. Trenton. 



Geological Map of New Jersey, 1868. 



Report of the Board of Visitors, New Jersey State College for the benefit of 

 Agriculture, 2d and 4th, 8vo. Trenton, 1866, 1868. From Prof. Geo. H. Cook. 



Description of new species of Cyprsea. By S. R. Roberts. 8vo. Pamph. 

 Philadelphia, 1868. 



Descriptions of Miocene Shells of the Atlantic Slope. By T. A. Conrad. 8vo. 

 Pamph. 



Remarks on some of the Mollusca of the valley of the Mohawk. By Jas. 

 Lewis, M. D. 8vo. Pamph. From Mr. S. R. Roberts. 



On Symmetry and Distorted Symmetry in the Leaves of Plants. By Burt 

 G. Wilder, M. D. 8vo. Pamph. Boston, 1867. 



Extra Digits. By the same. 8vo. Pamph. Boston, 1868. 



Cornell University. Circular to School Commissioners, City Superintendents 

 and Superiors. 8vo. Pamph. Albany, 1868. Supplement. 



Catalogue of the Officers and Students of the Cornell University for the year 

 1868-9. 8vo. Pamph. Ithaca, N. Y., 1869. From Prof. B. G. Wilder. 



Invertebrata of Massachusetts. Dr. Gould's Manuscript Catalogue, revised 

 by W. G. Binney. 8vo. Pamph. Burlington, 1868. 



Land and Fresh Water Shells of North America. By W. G. Binney. Parts 

 n-m. 8vo. Washington, 1865. 



Bibliography of American Conchology previous to the year 1860. Parts i-ii. 

 By W. G. Binney. 8vo. Washington, 1863-4. 



Researches upon the Hydrobiinaa and allied forms. By Dr. William Stimp- 

 son. 8vo. Pamph. Washington, 1865. From Mr. W. G. Binney. 



Report of the Commissioners of Fisheries, for the year ending January 1, 

 1868. 8vo. Pamph. Boston, 1868. 



Fifteenth Annual Report of the Secretary of the Massachusetts Board of 

 Agriculture. 8vo. Boston, 1868. 



Report of the Librarian of the State Library for the year ending Sept. 30, 



1868. 8vo. Pamph. Boston, 1869. 



Plates to Hitchcock's Ichnology of Massachusetts. 



Report of the Commissioners of Fisheries for the year ending January 1, 



1869. 8vo. Pamph. Boston, 1869. From Mr. F. G. Sanborn. 



Message from the President of the United States, communicating the fourth 

 Meteorological Report of Prof. James P. Espy. 4to. Washington, 1857. 



Reports of the Superintendent of the Coast Survey, showing the Progress of 

 the Survey during the years 1S55 and 1861. 4to. Washington. 



