640 
INDEX. 
Page. 
Culbertson, Alexander, his qualifications..-.......... 1 
snow on Upper Missouri river... 402 
D. 
Dacotalis .......------ ..... — ... —-- — ___..........._____........ 265—266 
Dalles . 218,290 
geology. 486 
Davis, Hon. Jefferson, instructions by.......72-74,449,633 
Dead Colt Hillock line ......... 222—223 
Dearborn river .... ................. 270,500,557 
topography. 170 
Deer Lodge creek and prairie ...175, 315, 343-344 
Distances, on various routes. 126-127 
Dog river ...... 491 
Dog trains . 498 
Dogs, Indian. 405 
Donclson, Lieutenant A. J., detail of. 74,77 
instructions to. 62-63,35-39 
orders on.....».. 67 
orders by. 48-51 
surveys the Upper Missouri. 78 
reaches Fort Benton. 78 
report on Missouri river and country near Fort Union. 231-247 
report on route from Fort Benton to Wallah-Wallah. 269-277 
itinerary—Fort Union to Fort Benton. 358-359 
itinerary—Fort Benton to Wallah-Wallah by Cadotte’s Pass, Jocko river, and Clark’s fork.. 360-363 
meteorological observations. 459-460 
protest of. 635 
Cadotte’s Pass, instructions, and party. 35-39,50 
Doty, Mr. James, reports on Blackfeet Indians............. 441-446 
instructions. 65-66 
meteorological observations. 461 
report, from Fort Benton, along Rocky mountains, eastern base, to latitude 49° 30'. 543-553 
report, from Fort Benton to Cantonment Stevens, aud Fort Benton to Olympia. 553-565 
meteorological instructions and observations, Fort Benton and Cantonment Stevens... 461,572-584 
Du Barry, Lieutenant Beekman, detailed and relieved.... 77 
Duncan, Lieutenant J. K., detail of..-.. 74-76 
report on topography of Cascade mountains..... 203-219 
D' IVamish Indians . 432 
river and lake. 470-471 
coal. 472 
E. 
Elk Fork .. 
Elokamin river .. 
Enteatkicu river .. 
Estimate of cost of railroad ..... 
of expenditures... 
Evans, Doctor John, services engaged.... 
to survey Mauvaises Torres__ 
geological memoranda.. 
reaches Fort Benton—collections. 
services of. 
reports. 
Examinations recommended . 
Excavations and embankments .. 
545 
467 
211 
144 
23-24 
1,4,77 
5 
11-13 
78 
158,159 
230,282 
157-158,452 
89-95,122 
F. 
Falls of Missouri. 
Fallen mountain ... 
278, 497 
172 
