86 Thirty-sixth Report ok the State Museum. 



63. Remarks 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. 

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

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



66. * On the Cretaceous Formations of the United States and the 



North American Continent. Pro. Am. Ass. Ad. Sci., 11th 

 meeting (Montreal), 1857, p. 158. Cambridge, 1858. 8vo. 



67. * On the Carboniferous Limestones and Coal Measures of the 



United States. (Published in the Geological Report of Iowa, 

 1858.) Ibid., p. 158. 



68. * On the Direction of Ancient Currents of Deposition, and the 



Source of Materials in the Older Palaeozoic Rocks, with lie- 

 marks on the Origin of the Appalachian Chain of Mountains. 

 Ibid., p. 158. 



69. Contributions to the Geological History of the American Conti- 



nent. (The address of the retiring President, delivered before 

 the First Montreal Meeting of the American Association for the 

 Advancement of Science, August, 1857.) Published in the 

 Proc. Am. Ass. Ad. Sci., 2d Montreal Meeting, 1882, pp. 29-71. 

 Salem, 1883. 



70. Notes upon the Genus Graptolithus, and Description of Some 



Remarkable New Forms from the Shales of the Hudson River 

 Group, discovered in the Investigations of the Geological Sur- 

 vey of Canada, under the Direction of Sir W. E. Logan, F. R. 

 S. Canadian Naturalist and Geol, vol. 3, pp. 139-150, and 

 161-177. Montreal, 1858. 8vo. 



71. * Observations upon the Genus Graptolithus and allied Genera. 



Proc. Am. Ass. Adv. Sci., 12th meeting, Baltimore, 1858, p. 

 287. Cambridge, 1859. 8vo. 



72. * Observations upon the Genus Megan teris and other Palaeozoic 



Brachiopoda. Ibid., p. 287. 



Contributions to the Palaeontology Of New York. 12th Ann. 

 Rept. Cab. Nat. Hist. Albany, 1*859. 8vo. 



73. Notice of the Genera Ambonychia, Palaearca and Megambonia. 



Ibid., pp. 8-14. 



74. Observations on the -Genera Capulus, Pileopsis, Acroculia, and 



Platyceras. Ibid., pp. 15-22. 



75. Observations on the Genera Platyostoma and Strophoslylus. 



Ibid., pp. 20-22. 



76. Observations on the Genus Nucleospira. Ibid., pp. 23-34. 



77. Observations on the Genus Eatonia. Ibid., pp. 34-37. 



78. Observations on the Genus Rensselaeria. Ibid., pp. 38-41. 



79. Observations on the Genus Camarium. Ibid., pp. 42-44. 



80. Notes upon the Genus Graptolithus. Ibid., pp. 45-58. 



81. Trilobites of the Shales of the Hudson River Group. Ibid., pp. 



59-62. 



