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Conrad, Timothy Abbot. 6. Description of a 

 new genus of Fresh-water Shells. Philadelphia, 

 Journ. Acad. Nat. Sci. VII., 1834, pp. 178-181. 



~ 7. Description of a new species of Hinnita. 



Philadelphia, Journ. Acad. Nat. Sci. VII.. 1834, 

 pp. 182-183. 



8. Description of some new species of Fresh- 

 water shells from Alabama, Tennessee. Silli- 

 man, Journ. XXV., 1834, pp. 338-343. 



9. Descriptions of new marine shells from 



Upper California, collected by Thomas NUTTALL. 

 Philadelphia, Journ. Acad. Nat. Sci. VJI., 

 1834-37, pp. 227-268. 



1O. Description of five new species of 

 fossil shells in the collection presented by 

 Mr. Ed. MILLEU. Pennsylvania, Geol. Soc. 

 Trans. I., 1835, pp. 267-270. 



11. Observations on a portion of the At- 

 lantic tertiary region. Pennsylvania, Geol. Soc. 

 Trans. I., 1835, pp. 335-341 ; Washington, 

 Nat. Inst. Bull. II., 1842, pp. 171-194. 



12. Observations on the tertiary strata of 



the Atlantic Coast. Silliman, Journ. XXVIII., 

 1835, pp. 280-282. 



13. Notes on American geology. Silli- 

 man, Journ. XXXV, 1839, pp. 237-251. 



14. Description of twenty-four new species 



of fossil shells, chiefly from the tertiary deposits 

 of Calvert Cliffs, Maryland. Philadelphia, 

 Journ. Acad. Nat. Sci. VIII., 1839-42, pp. 

 183-190. 



15. Description of three new species of 

 Unio from the rivers of the United States. 

 Philadelphia, Journ. Acad. Nat. Sci. VIII., 

 1839-42, pp. 178-180. 



16. Observations on the Silurian and De- 

 vonian systems of the United States, with de- 

 scriptions of new organic remains. Philadelphia, 

 Journ. Acad. Nat. Sci. VIII., 1839-42, pp. 

 228-235. 



17. Descriptions of new species of organic 



remains belonging to the Silurian, Devonian, 

 and Carboniferous systems of the United States. 

 Philadelphia, Journ. Acad. Nat. Sci. VIII., 

 1832-42, pp. 235-280. 



18. On the Silurian system, with a table 



of the strata and characteristic fossils. Silli- 

 man, Journ. XXXVIII., 1840, pp. 86-93. 



19. New fossil shells from North Carolina. 



Silliman, Journ. XXXIX., 1840, pp. 387-388. 



20. Description of twenty-six new species 

 of fossil shells, from the medial tertiary deposits 

 of Calvert Cliffs, Maryland. Philad. Acad. Nat. 

 Sci. Proc. I., 1841-43, pp. 28-33. 



21. Descriptions of a new genus, and of 



twenty-nine miocene and one eocene fossil 

 shells of the United States. Philad. Acad. Nat. 

 Sci. Proc. I., 1841-43, pp. 305-311. 



Conrad, Timothy Abbot. 22. Descriptions of 

 nineteen species of tertiary fossils of Virginia 

 and North Carolina. Philad. Acad. Nat. Sci. 

 Proc. I., 1841-43, pp. 323-329. 



23. Observations on the lead-bearing 



limestone of Wisconsin, and descriptions of a 

 new genus of Trilobites and fifteen new Silu- 

 rian fossils. Philad. Acad. Nat. Sci. Proc. I., 

 1841-43, p. 329. 



24. Descriptions of eight new fossil shells 



of the United States. Philad. Acad. Nat. Sci. 

 Proc. II., 1844-45, pp. 173-175. 



25. Descriptions of new species of fossil 



and recent Shells and Corals. Philad. Acad. 

 Nat. Sci. Proc. III., 1846-47, pp. 19-27. 



26. Observations on the eocene formation, 



and descriptions of one hundred and five new 

 fossils of that period, from the vicinity of Vicks- 

 burg, Mississippi ; with an Appendix. Philad. 

 Acad. Nat. Sci. Proc. Ill, 1846-47, pp. 280- 

 299 ; Philad. Journ. Acad. Nat. Sci. I., 1847- 

 50, pp. 111-134. 



27. Observations on the eocene formation 



of the United States, with descriptions of species 

 of Shells, &c. occurring in it. Silliman, Journ. 

 I., 1846, pp. 209-221, 395-407. 



28. Notices of fresh-water shells, &c. of 



Kockbridge County, Virginia. Silliman, Journ. 

 L, 1846, pp. 405-407. 



29. Observations on the geology of a part 



of East Florida, with a Catalogue of recent 

 Shells of the Coast. Silliman, Journ. II., 1846, 

 pp. 36-48. 



30. Tertiary of Warren Co., Mississippi. 



Silliman, Journ. II., 1846, pp. 124-125. 



31. Eocene formation of the Walnut Hills, 



&c., Mississippi. Silliman, Journ. II., 1846, 

 pp. 210-215. 



32. Catalogue of Shells inhabiting Tampa 



Bay and other parts of the Florida coast. 

 Silliman, Journ. II., 1846, pp. 393-398. 



* 33. Descriptions of new species of organic 



remains from the Upper Eocene Limestone of 

 Tampa Bay. Silliman, Journ. II., 1846, pp. 

 399-400. 



34. Descriptions of new fossil and recent 



shells of the United States. Philadelphia, 

 Journ. Acad. Nat. Sci. I., 1847-50, pp. 207- 

 209. 



35. Notes on Shells, with descriptions of 

 new genera and species. Philadelphia, Journ. 

 Acad. Nat. Sci. I., 1847-50, pp. 210-214. 



36. Descriptions of new fresh-water and 

 marine Shells. Philadelphia, Journ. Acad. 

 Nat. Sci. I., 1847-50, pp. 275-280. 



37. Fossil Shells from tertiary deposits 

 on the Columbia River, near Astoria. Silliman, 

 Journ. V., 1848, pp. 432-433. 



