GEOLOGY AND PALEONTOLOGY. 171 
1867. 
48. Hayden, F. V. Sketch of the Geology of Northeastern Dakota. Am. Jour. 
Sci., 43: 15-22. : 
49. Hayden, F. VY. Remarks on the Cretaceous Rocks of the West, known as 
No. 1, or the Dakota Group. Am. Jour. Sci., 43: 171-179. 
50. Hayden, F. V. Notes on the Geology of Kansas. Am. Jour. Sci., 44: 32-40. 
51. Marcou, Jules. Le Dyas au Nebraska. Soc. Geol. France, Bull., 2d series, 
24 : 280-299. 
52. Marcou, Jules. Carte Géologique de la Partie des Bords du Missouri entre 
Omaha City et Sioux City. Soc. Geol. France, Bull., 2d series, 24: 56. 
53. White, C. A. Exogenous Leaves in the Cretaceous Rocks of Iowa. Am. 
Jour. Sci., 44: 119. 
1868. 
54. Hayden, F. V. Notes on the Lignite Deposits of the West. Am. Jour. 
Sci., 45: 198-208. 
55. Hayden, F. V. Remarks on the Geological Formations along the Eastern 
Margin of the Rocky Mountains. Am. Jour. Sci., 45: 322-326. 
56. Leconte, John L. Notes on a Survey for the Union Pacific Railroad, from 
the Smoky Hill to the Rio Grande River. Philadelphia (?), 1868. 
7. Lesquereux, Leo. On some Cretaceous Fossil Plants from Nebraska. Am. 
Jour. Sci., 46: 91-105. 
58. Marcou, Jules. On the Dyasin Nebraska. St. Louis Acad. Sci., 2: 562-564. 
59. Newberry, J. S. Notes on the Later Extinct Floras of North America, 
with Descriptions of some New Species of Fossil Plants from the Cre- 
taceous and Tertiary Strata. Annals Lyc. Nat. Hist. N. Y., 9: 1-76. 
1869. 
60. Hayden, F. V. Some Remarks on the Geology of the Missouri River and 
a Section from the Mouth of the Platte to Fort Benton. Proc. Am. 
Philos. Soc., 10: 292-296. 
606. Hayden, F. V. Remarks on the Lignite Beds of the Upper Missouri. 
Ibid., pp. 300-307. 
61. Miller, Edward. Memoir on the ‘‘Mushroom Rock,’’ near Alum creek, 
Kansas. Ibid., pp. 382-384. 
62. Hayden, F.V. Notes on the Geology of Wyoming and Colorado Territories. 
Ibid., pp. 463-478. Describes the sandstones of the Cretaceous period, 
along the Missouri, north of Omaha. 
62b. Hayden, F. V. Introduction to Preliminary Field Report of the Geological 
Survey of Colorado and New Mexico, pp. 9-11. 
63. Lesquereux, Leo. On Fossil Leaves from Fort Ellsworth, Neb. [Fort 
Harker, Kansas.—Ep.] Trans. Am. Philos. Soc., 13: 430-433. 
1870. 
64. Newberry, J.S. Notice of Fossil Plants from the Cretaceous Sandstone of 
Fort Harker, Kan. Proc. N. Y. Lyc. Nat. Hist., 1: 148. 
65, St. John, O. The Cretaceous of Iowa. Geol. Surv. of Iowa, 2: 10-12. 
66. White, C. A. Cretaceous Systems of Iowa. Geol. Surv. Iowa, 1: 285-293. 
1871. 
67. Lesquereux, L. Enumeration and Description of the Fossil Plants from 
the Specimens obtained in the Explorations of Dr. F. V. Hayden, 1870 
and 1871: Cretaceous Strata, Kansas. Prel. Rep. U. S. Geol. Surv. 
Montana, etc., 1871, pp. 301-318. 
67b. Cope, E. D. On the Geology and Paleontology of the Cretaceous Strata 
of Kansas. Ibid., 318-349. 
