State Museum of Natural History. 



83 



51. * On the Western Limits of the Cretaceous Formation on the 



Northern Continent of America, as Evidence by the Various 

 Collections that have been made by Exploring Expeditions 

 under the Direction of the Government of the United States. 

 Ibid., p. 291. 



52. * Contributions to our Knowledge of the Geology of Nebraska and 



the Mauvaises Terres. Proc. Am. Ass. Ad. Sci., 9th meeting, 

 Providence, 1855, p. 277. Cambridge, 185G. 8vo. 



53. * Notes upon the Genus Graptolithus. Ibid., p. 277. 



54. * On the Development of the Septa in the Genus Baculites, from 



the extreme Young to the Adult State. Ibid., p. 277. 



55. Descriptions of New Species of Fossils from the Cretaceous For- 



mations of Nebraska, with Observations upon Baculites ovatus 

 and B. compressus; and the Progressive Development of the 

 Septa in Baculites, Ammonites and Scaphites. J. Hall and F. 

 B. Meek. Memoirs of the American Academy of Arts and Sci- 

 ences, vol. V, new series, pp. 379-411, 8 plates. Cambridge, 

 1856. 4to. 



56. On the Genus Tellinomya, and Allied Genera. The Canad. Nat. 



and Geol., vol. 1, pp. 390-395. Montreal, 1856. 8vo. 



57. Observations on the Genus Archimedes, or Fenestella, with 



Descriptions of Species, etc. Proc. Am. Ass. Ad. Sci., 10th 

 meeting, Albany, 1856, pp. 176-180. Cambridge, 1857. 8vo. 



58. On the Carboniferous Limestones of the Mississippi Valley. Ibid., 



pp. 51-69. 



59. Opening Address before the Am. Association. Ibid., pp. 230-232. 



60. *On some Points in the Geology of the Upper Mississippi Valley. 



Ibid., p. 226. 



61. * On the Kesults of Collections of Fossils during a Period of Ten 



Years in the Limestones of the Lower Helderberg. Ibid., p. 227. 



62. Observations upon the Carboniferous Limestones of the Mississippi 



Valley. [Abstract.] Am. Jour. Sci., 2d Ser., vol. 23, pp. 

 187-203. New Haven, 1857. 8vo. 



63. Kemarks upon the Genus Archimedes or Fenestella from the Car- 



boniferous Limestones of the Mississippi Valley. Ibid., pp. 

 203, 204. 



64. Observations upon the Cretaceous Strata of the United States 



with Reference to the Relative Position of Fossils Collected by 

 the [Mexican] Boundary Commission. Am. Jour. Sci. and 

 Arts, 2d Ser., vol. 24, pp. 72-86. New Haven, 1857. 8vo. 



65. Descriptions of Palaeozoic Fossils. 10th Ann. Rep. St. Cab. Nat. 



Hist., App. C, pp. 41-180. Albany, 1857. 8vo. 



