650 
INDEX. 
Suckley, Dr. George — 
health report of. 
report of canoe trip, Fort Owen to Vancouver. 
Summary of explorations . 
Sun river . 
valley. 
Survey for railroad, its nature. 
Page. 
177-179 
70-71,291-301 
76,80 
.. 166,270,544 
273,499 
2 
T. 
Table of temperatures . (S ec Lists.) 
Tahlc prairie . 
Temperatures, observed. 
(See Meteorology.) 
Terraces, remarkable. 
Columbia river. 
Teton river . 
character of. 
Thompson’s prairie ...... 
Three Buttes ... 
Lambert on topography of. 
Tinkham’s report on. 
Three Tctons . 
Timber, on Columbia river... 
on Cascade mountains. 
on Bitter Root and Hell Gate rivers. 
distribution of. 
Tinkham, A. W., civil engineer... 
instructions to. 
reports on Snoqualme Pass. 
report, Blackfoot trail to Clark’s fork. 
report and instructions on Marias Pass line aud Nez Perces trail.. 
Stevens’s Cascade passes—instructions. 
report on snows, Rocky mountains, Bitter Root river, and Cascade mountains 
itineraries, St. Paul to Fort Union. 
Fort Benton to Fort Owen by Blackfoot trail. 
Fort Owen to Fort Benton by Jocko river, Flathead lake, and Marias Pass .. 
Fort Owen to Wallah-Wallah by Nez Perces trail. 
Trois Buttes report. 
extracts from reports of. 
Topography of route, Lambert’s report... 
Duncan’s Cascade mountains report.. 
Touchet river ..... 
Traditions of Indians, Lot’s wife. 
Eliptillicum. 
Train orders ... 
Traverse lake .-.-..... 
Treaties with Indians .......... 
Trois Buttes. (See Three Buttes.) 
Tunnels ....—....... 
Cascades..... 
Tieitsp river and valley ... 
Two Canon river . 
U. 
Umatilla river . 
V. 
Vancouver, Fort. 
country near.... 
soil around... 
Variations of the needle observed ___— __ 
. 208,477 
.128-140,567-568 
.. 213 
.. 483 
.165,270,498,546 
. 93,551 
. 173,259,505 
. 94,331,447 
. 165 
.......... 226-230 
.. 331-332 
.108-109,113,474 
. 220 
. 292 
.. 451 
.. 76 
.. 17-18 
..184-186,621,629-631 
.. 273-275 
64,69,276-281,625-629 
. 617-619 
. 399-400,625-629 
.. 352-358 
. 309-371 
. 371-374 
.. 374-377 
.. 226-230 
.. 87,88 
. 160-177 
. 203-219 
.. 217,564 
. 212 
.. 207-208 
. 48-49 
.. . 487 
. 422,424 
. 117-120 
. 181-183 
. 197 
. 290,536 
218 
419 
204 
473 
