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COLVIN, Yerplanck. Report on a Topographical Survey of the 

 Adirondack Wilderness of New- York. 



8vo. 43 pp., with a map. Albany, 1873. 



COOK, G. H. Geological Survey of the State of New-Jersey. An- 

 nual Report of the State Geologist for the year 1869. 



8vo. 57 pp. Trenton. 1870. 



Annual Report of the State Geologist for the year 1870. 



. 8vo. 67 pp. New-Brunswick, 1871. 



Annual Report of the State Geologist for the year 1874, m 



8vo. 115pp. Trenton, 1874. 



Report on the Geology of New-Jersey. 



4to. 900 pp. Newark, 1868. 



Cox, E. T. First Annual Report of the Geological Survey of In- 

 diana. 8vo. 240 pp., with vol. of Maps. Indianapolis, 1869. 



Second Annual Report of the Geological Survey of Indiana, 



made during the year 1870. 



8vo. 303 pp. Indianapolis, 1871. 

 COZZENS, Isacchar. The Geological History of Manhattan Island. 



8vo. 114pp. New- York, 1843. 



CREDNER, Hermann. Geognosticher Aphorismen aus Nord-Amerika. 



8vo. 13 pp., I. plate. Leipsig, 1870. 



DANA, J. D. Manual of Geology. Treating of the Principles of 

 Science, with special reference to American Geological His- 

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Whitney's Geology of California. 8vo. 18 pp. 



DAWSON, J. W. Acadian Geology. 8vo. 384pp. London, 1855. 



Acadian Geology. The Geological Structure, Organic Re- 

 mains and Mineral Resources of Nova-Scotia, New-Bruns- 

 wick and Prince Edward's Island. 



8vo. 694 pp. London, 1868. 



EATON, Amos. Index to the Geology of the Northern States ; to 

 which is prefixed a Geological Grammar. Second edition. 



12mo. 286pp. Troy, 1820. 



EMMONS, Ebenezer. The Geology of the Eastern Counties of 

 North Carolina. 8vo. 314 pp. Raleigh, 1858. 



The Geology of the Midland Counties of North Carolina. 



8vo. 351 pp. New- York, 1856. 



FOSTER, J. W., and Whitney, J. D. Reports on the Geology and 



Topography of a portion of the Lake Superior Land District. 



PartJ. The Copper Lands. Svo. 224pp., IV. Maps. 



1850. 



Part II. The Iron Regions and General Geology. 406 pp., 

 XXXIV. plates. 1851. 2 vols. Svo. Washington. 

 FREMONT, J. C. Report of the Exploring Expedition to the Rocky 

 Mountains in the year 1842, and to, Oregon and North Cali- 

 fornia in the years 1843-1844. 



Svo. 693 pp. Washington, 1845. 



HALL, James, and Whitney, J. D. Report on the Geological Sur- 

 vey of the State of Iowa, embracing the Results of Investiga- 

 tions made during portions of the years 1855, 1856 and 1857. 

 Vol. I, Part 1. ^Geology. 4to. 1858. 



