216 
Green river, 121. 
Green river mountains, 119. 
Green river valley, 105. 
Grindstone hills, 105. 
Gros Ventres fork, 122. 
Guadalupe mountains, 38. 
Gulf States, 130. 
Gryphea vesicularis, 81. 
Gypsum-bearing beds of Kansas, 
56. 
General description of Kansas, 59. 
Hall, Prof. ae 37, 39. 
Helena, 66. 
Helicide, 102. 
Paticacseas, 82. 
Helix, 102, 104, 105, 181. 
Henry, Prof,, 131. 
. Hettangia, 68, 88. 
Highwood Mucntiins, 119. 
27. 
. wl. 
Hornblende, steel gray, 18, 
Horseshoe creek, 16. 
HHycenodon, 107. 
Hydrated peroxide of iron, 76. 
yopotamus, 106. 
ypohippus, 106. 
See 106. 
B by by 
x 107. 
set 107. 
inois, Permian fossils of, 88. 
Impressions of leaves, fossil, 9. 
Indianola, 39. 
Inoceramus, 21, 89. 
eramus problematicus, 10, 69, 
rie 
Introduction, historical, 1. 
Inyankara Paha, or Stone Peak, 24. 
Ischyrotherium, 101. 
Isthmus of Darien, 126. 
Jackson’s hole, 119. 
James river, 69. 
Jefferson fork, 121. 
Johnson, Prof, 3. 
Judith mountains, 34, 120. 
Judith river, 109. 
Jura of Europe, 67. 
Jurassic System, treated of, 67. 
Zone around Black Hills, 27. 
Jurassic, 16, 22, 23, 
27, 33, 56, 67 
Kansas, 38, 8 
Keuper (npe Trias), 123. 
King, Prof., 61. 
Lake Cakece 36. 
Lake Utah, 122. 
La Bonte creek, 120. 
Lamellibranchiata, 65. 
Laramie range, description of, 17. 
Laramie range, beautiful valleys of, 
17. 
Laramie Peak, 18, 35. 
Last creek, 46, 47. 
Lawrence, 39, 43. 
Leavenworth City, 39. 
Leda, 50, 90. 
Ledide, 90. 
Leidy, Prof., 3. 
Leptarctus, 107. 
Leptauchenia, 106. 
Leptochcerus, 106. 
Leptodomus, 40. 
Leptomeryx, 106. 
Lewis and Clarke, 1, 2. 
Lias, 68. 
Lignite Tertiary beds, 16, 28, 92, 
93, 94, 129, 130 
limite cooleanenny 71. 
Lime, sulphate of, 73. 
Limestone, magnesian, 51. 
Limestone, gray, 
Limestone, carboniferous, 6, 28. 
Limestones, fused, 19 
Limits of some forest trees, 10. 
Limnea, 3, 102, 104, 180. 
Little Missouri river, 100. 
Little Rocky Mountain creek, 34. 
Little Stranger creek, 42. 
Lodge Pole ereek, 115. 
Loess of the Rhine, 104. 
Long Lake, 69 
Lost Spring, 39. 
24, 25, 26, 
ON THE GEOLOGY AND NATURAL HISTORY 
Loup fork, 11. 
Section of beds, 12. 
Loup fork, geology of, 13. 
Machairodus, 107. 
Mackenzie river, 99. 
Macrocheilus, 22. 
Macrobacia, 91. 
Madison fork, 119. 
Margarita, 85. 
Margaritella, 85. 
Mammalian remains, 15. 
Manhattan, 51. 
Marcon, Jules, 37. 
Marl, calcareous, 74. 
Martinia Clannyana, 55. 
Mastodon, 18, 106. 
Medicine Bow mountains, 119. 
Medicine Hills, 33 
Meek, F. B., 4. 
pS Sees 106. 
Melania, 101. 
Melanin, 101. 
Merychippus, 106. 
Merychyus, 106. 
Merychocherus, 14, 106. 
Merycodus, 106. 
Meretrix, 88. 
Metamorphic rocks of Black Hiils, 
14 
Mexico, 36. 
Microbacia coranula, 81. 
Milk river, 69. 
Mill creek, 46. 
Minnesota, 80. 
Miocene beds, 14, 104. 
Upper Miocene, 13. 
Mission creek, 45. 
Mississippi, 115. 
fissouri river, 1. 
Modiola, 89. 
Moreau trading post, 69. 
Moreau river, 77, 80. 
Morton, Dr., 2, 3. 
Mosasaurus ‘Maxcinitiant, 2, 91. 
Mud island, 87. 
Multungula, 106. 
Murchisonia, 46. 
