260 



CATALOGUE AND INDEX OF 



[BULL. 127. 



Conrad, Timothy A. — Continued. 



Notes on American geology. Obser- 

 vations on characteristic.' fossils, and 

 upon a fall of temperature in different 

 geological epochs. Remarks on the 

 Transition or Silurian system. Organic 

 remains of the Transition. 



Am. Jour. Soi., vol. 35, pp. 237-249, 1839. 



On the Silurian system, with a table 



of the strata and characteristic fossils. 

 [Observations on the plastic clays.] 

 Am. Jour. Soi., vol. 38, pp. 86-93, 1840. 



On the geoguostic position of the 



zeuglodon or basilosaurus of Harlan. 

 Am. Jour. Sci., vol. 38, pp. 381-382, 1840. 



Third annual report of the paleonto- 



logioal department of the survey. 



New York Geol. Sorv., 4th Annual Eeport, 

 pp. 199-207, Albany, 1840. 



Abstract, Am. Jour. Sci., vol. 40, pp. 77-79, 

 1841. 



Fifth annual report on the paleon- 

 tology of the State of New York. 



'New York Geol. Surv., 5tli Annual Keport, 

 pp. 25-57, Albany, 1841. 



Abstract, Am. Jour. Sci., vol. 42, pp. 229-235, 

 1812. 



Observations on a portion of the 



Atlantic Tertiary region, with a de- 

 scription of new species of organic 

 remains. 



National In&t., Proc, vol. 1, pp. 171-194, 

 plates, 1842. 



Observations on the Silurian and 



Devonian systems of the United States, 

 with description of new organic re- 

 mains. 



Philadelphia Acad. Sci., Jour., vol. 8. pp. 

 228-235, 1842. 



[ ] [Age of lead-bearing limestones 



of the upper Mississippi, abstract.] 

 Kead to Assoc. Am. Geol. 

 Am. Jour. Sci., vol. 47, p. 106 (J p.), 1844. Dis- 

 cussed by Locke, Houghton, Eogers, and 

 King, pp. 106-107. 



Observations on the Eocene forma- 

 tion of the United States, with descrip- 

 tions of species of shells, etc., occur- 

 ring in it. 



Am. Jour. Sci., 2d series, vol. 1, pp. 209-220, 

 395-405, 2 plates, 1846. 



Observations on the geology of a 



part of east Florida, with a catalogue 

 of recent shells of the coast. 



Am. Jour, Sci., 2d series, vol. 2, pp. 36-48, 

 1846. 



Conrad, Timothy A. — Continued. 



Tertiary of Warren County, Miss. 



Am. Jour. Sci., 2d series, vol. 2. pp. 124-125, 

 1846. 



Eocene formation of the Walnut 



Hills, etc., Miss. 



Am. Jour. Sci., 2d series, vol. 2, pp. 210-215, 

 1846. 

 Observations on the Eocene forma- 

 tion in the vicinity of Vicksburg, Miss. 

 Philadelphia Acad. Sci., Proc, vol. 3, pp. 280- 

 282, 1848. 

 Observations on the Eocene forma- 

 tion in the vicinity of Vicksburg, Miss. 

 Philadelphia Acad. Sci., Jour., vol. 1, 2d 

 series, pp. 111-134, Plates XI-XIT, 1850. 



Bemarks on the Tertiary strata of 



St. Domingo and Vicksburg, Miss. 



Philadelphia Acad. Sci., Proc, vol. 6, pp. 198- 



199 (S p.), 1854. 



Report on the fossil sheUs collected 



in California, by W. P. Blake, geologist 

 of the expedition under the command 

 of Lieut. R. S. Williamson, United 

 States topographical engineers. 



Appendix to the preliminary geological 

 report of W. P. Blake, explorations for rail- 

 road from the Mississippi to the Pacific, 

 House Doc. No. 129, pp. 5-20,'Washington,1855. 

 Abstract, Am. Jour. Soi., 2d series, vol. 21, 

 pp. 268-370, 1835. 



Observations on the Eocene deposit 



of Jackson, Miss., with descriptions of 

 34 now species of shells and corals. 

 Philadelphia Acad. Sci., Proc, vol. 7, pp. 



257-268, 1856. 



Description of Cretaceous and Ter- 

 tiary fossils. 



TJ. S. and Mexican Boundary Surv., Seport 

 by Emory, vol. 1, part 2, pp, 141-174, plate 40, 

 "Washington, 1857. 



Report on the paleontology of the 



survey. 



Reports of explorations and surveys for a 

 railroad route from the Mississippi to the 

 Pacific; "Vol. Til; report of J. G. Parke upon 

 routes in California to connect with the 

 routes near the 35th and 32d parallels [etc.] ; 

 Part II, geological report by Thomas Anti- 

 sell, pp. 189-196, Plates I-X, 4°, 32d Cong., 2d 

 sess.. House Ex. Doc. No. 91, Washington, 1857. 

 [Separate in 1856.] 



Abstract, Am. Jour. Soi., 2d series, vol. 26, 

 p. 127 (t p.), 1858. 



Descriptions of new Eocene shells 



from Enterprise, Miss. 



Am. Jour. Conch., vol. 1, pp. 137-141, piste, 

 1865. 



