Rat, peculiar variety of, 121.  Rickarees, in the country of the, 40.  River, Little Missouri, to; Mouse, source of, 60; Yellowstone, 65.  Porcupine, 70.  Saskatchewan, 74.  Milk, 74; Big Dry, 75.  Upper Missouri, 80.  Musselshell, 81.  Slaughter, 88; Maria’s, 97.  Madison, 106.  Columbia, portage to, 108.  Smith’s, 129; Dearborn, 130.  Salmon, 152.  Lemhi, 152.  Lewis’s, 165.  Kooskooskee, 180; Clark’s, 180.  Clearwater, 183.  Snake, 188.  Yakima, 196.  John Day’S, 203; Klikitat, 21.  Quicksand, 220.  Multnomah. 220.  Rocky Mountains, first sight of, 85. sheep, 85. gates of the, 132. farewell to the mountains, 335.  Rocks, Cathedral, 90-92.

     S

St. Louis, village of, 11. first post-office in, 359.  Sacajawea, joins the expedition, 4. stream named for her, 82; story of her capture, 138. finds her own people, 160. a tribute to her memory, 332.  Sage-brush, first seen, 62.  Saline County, Mo., 16.  Salmon River, 152.  City, Idaho, 165. abundance of fish, 194.  Salt, made from sea-water, 23. et seq.  Saskatchewan River, 74.  Shannon, the lost hunter, 143.  Shoshonees, first meeting with, 14. among the, 15. et seq.; some account of the, 17. et seq.  Sioux Indians, 27.  Slaughter River, 88.  Smith’s River, 128.

Snake River, 188. junction of the with Columbia, 190.  Sokulk Indians, some account of, 19. et seq.  Spirit Mound, 24.  Spring River, S. D-; 42.  Stone-Idol Creek, legend Of, 42.  Sweat baths, Indian, 187, 298.

     T

     Tetons, in the country of, 33-38. 
     Three-thousand-mile Island, 331. 
     Tillamook Indians, 244. 
     Traveller’s-rest Creek, 309. 
     Twisted-hair, an Indian chief, adventures with, 28. et seq.

     U Umatilla, 271-

     V

     Vancouver, Capt-y 3-

     W

Wahkiacum Indians, 224.  Walla Walla, 271.  Wappatoo, edible root, 23. description of, 260.  Weocksockwillacums, 265.  Wharfington, commands return party to the U. S., 58.  White Bear Islands, 110. camp at, 114.  Whisky, Indian rejection of, 42.  Winter camp, first, 48. departure from, 57-

     Y

     Yakima River, 196. 
     Yankton, S. D., 24. 
     Yellowstone River, 65;
     Capt.  Clark’s descent of the, 327. 
     York, a negro servant, 41. 159.