P., 156. Crevice Creek, 71. Crook, General George, visits Park, 106. Crosby, Schuyler, appeals to Congress for protection to Y. N. P., 133. member of presidential party, 1883, 107. Crow Indians, territory of, 8, 18. treaties with, 18, 19. tribal characteristics, 8. Crystal Falls, 80, 253. Cubs, The, 232. Cupid's Cave, 214. Danger to future existence of Y. N. P., 281. Dawes, Hon. H. L., 94, 336. Dawes, Miss Anna L., 336. Death Gulch, 264. De Lacy Creek, 239. De Lacy, W. W., discovers Lower Geyser Basin, 68. discovers Shoshone Lake, 68. history of his expedition, 67-69. Deluge Geyser, 243. Denudation and erosion, work of, in Y. N. P., 158. "Devil," frequency of name in Y. N. P., 287, 388. Devil's Kitchen, 214. Diamond, The, Bridger's story of, 35. Dietrich, Richard, member of Helena tourist party, 111. killed by Nez Percés, 122. Dingee, William, member of Helena tourist party, 112. Discovery of gold, 65, 66. Discovery of the Y., 72. long delay in, 101. Doane, Lieutenant G. C., ascends Absaroka Range, 80, 295. biographical sketch, 294. commands escort to Washburn Expedition, 14, 76. descends Grand Cañon, 80. guide to General Belknap, 105. measures height of Upper Falls, 325. quoted, 6, 14, 78, 175, 235, 237, 254, 261, 297, 325, 343. report of, upon Washburn Expedition, 83. Dome, The, 217. Drainage areas of Y. N. P., 149. "Dreamers" among the Nez Percés, 114. Du Charne, Baptiste, upon the Upper Y. in 1824, 41. Duncan, L., member of Helena tourist party, 1877, 111. Dunnell, M. H., and Park bill, 93. Dunraven, Earl of, 9. publishes "Great Divide," 295. quoted, 96. visits Y. N. P., 295. Early knowledge of the Y., 50, 60. East Gardiner Cañon and Falls, 215. Echinus Geyser, 220. Elephant Back, original name for Washburn Range, 152, 296. Electric Peak, 152, 215. Electric railways in Y. N. P., 204, 276, 277, 280, 365. Elk in Y. N. P., 184, 280. Elliott, H. W., 336, 337. Emerald Pool (Norris Geyser Basin), 220. (Upper Geyser Basin), 230. Equipment for snow-shoe traveling, 195. Erosion, work of, in Y. N. P., 158. Eustis Lake, first name for Y. Lake, 335. Eustis, William, 334. Evermann, B. W., describes Two-Ocean Pass, 245. Everts, Mt., 153, 215, 216. Everts, T. C., experience of, in 1870, 81, 297. member of Washburn Party, 76. Excelsior Geyser, 226. Expedition of 1869. See _Folsom Expedition_. of 1870. See _Washburn Expedition_. Explorations by U. S. Government, relation of to Y. N. P., 100. Explorers, rush of, to Y. N. P., 103.