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8vo. 301 pp. Philadelphia, 1840. 



Second, Third, Fourth, Fifth and Sixth Annual Reports of 



the State Geologist of the State of Pennsylvania. 



8vo. Harrisburg, 1838-1842. 



The Geology of Pennsylvania. 



2 vols. 4to. 586, 1045 pp. Philadelphia, 1858. 

 SAFFORD, James M. First and Second Biennial Reports on the 

 Geology of the State of Tennessee, made to the Thirty-first 

 and Thirty-second General Assemblies. 



Svo. 164, 11 pp. Nashville, 1856, 1857. 



Geology of Tennessee. Svo. 550pp. Nashville, 1869. 



SWALLOW, G. C. First and Second Annual Reports of the Geologi 

 cal Survey of Missouri. 8vo. 446 pp. Jefferson City, 1855. 



TROOST, Gerard. Fifth, Eighth and Ninth Geological Reports to 

 the Twenty-third, TwQnty-sixth and Twenty-seventh General 

 Assemblies of Tennessee. Svo. 76,20,39pp. Nashville, 1840. 

 TUOMEY, M. Reports on the Geology of South Carolina. 



4to. 293 pp. Columbus, S. C., 1848. 



Second Biennial Report on the Geology of Alabama. 



8vo. 292 pp. Montgomery, Ala., 1858. 



TYSON, P. T. First Report to the House of Delegates of Maryland, 

 with Appendix on the Mineral Resources of Maryland. 



Svo. 145, 20 pp. Annapolis, 1860. 

 UNITED STATES and Mexico Boundary Survey, under Major W. H, 



Emory, Commissioner. 

 Part I., Subdivision 1. General Description of the Country, 



&c., by W. H. Emory. 



Subdivision 2. Geological Reports by Dr. H. C. Parry and 

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 and Geology of the Boundary by James Hall. Descrip 

 tion of Cretaceous and Tertiary Fossils by T. A. Conrad. 



4to. Washington, 1859. 

 UNITED STATES Geological Survey of the Territories. Hayden, F. 



V., Director. Preliminary Reports. Octavo series. 

 Preliminary Field Report of the Survey of Colorado and 

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. Preliminary Report of the Survey of Montana and portions 

 of Adjacent Territories. Svo. ;538 pp. Washington, 1872. 

 Preliminary Report of the Survey of Wyoming and portions 

 of Contiguous Territories. 



Svo. 511 pp. Washington, 1872. 



First, Second and Third Annual Reports, for the years 1867, 

 1868 and 1869. Svo. 261^pp. Washington, 1873. 



Final Report on Nebraska and portions of the Adjacent Ter 

 ritories. Svo. 264 pp., XI. plates. Washington, 1872. 

 Sixth Annual Report, embracing portions of Montana, Idaho, 

 Wyoming and Utah ; being a Report of .Progress of the 

 Explorations for the year 1872. 



Svo. 844 pp. Washington, 1873. 



