644 
INDEX, 
Page 
Lengths of routes .-... 126-127 
Lewis and Clark's Pass . 79,100, 275 
Lightning's Nest ........._ _. 487 
Lignite . 94,239 
Lime . 95,123 
Linden Landing .. 235 
L ists, of papers accompanying report. 155-157 
of officers..... 76-77 
of latitudes.-.„. 453-456 
of longitudes... 456 
of barometric heights. 456-460 
Little Blackfoot, river and pass. 99,106,279,555 
fork. 314,352 
Little Dalles . 282-283 
Little falls, crossing at, on Mississippi river. 15-16,83,89,225 
Little Rocky Mountain river . 493 
Lo-Lo’s fork and pass . 529—530 
Longitude, observations. 450 
list of. 456 
Stevens’s report. 540-541 
Donelson’s protest. 635 
Lumber . 90 
Lummi river . 471 
Indians. 433 
M. 
Macfeely, Lieutenant R., U. S. A., report, Fort Owen to Wallah-Wallah... 
Magnetic variations, observed. 
instructions for... 
Manufactures for Asia . 
Makahs ........—...... 
Mandan Indians ... 
Maple river ... 
Maps, with report. 
Marias Pass . 
Tinkham’s report on. 
river... 
character of.. 
Tinkham’s report... 
Lambert on topography of. 
Grover... 
Mauvaises Terres . 
hills... 
McClellan, Cajitain Geo. B., U. S. A., detailed... 
change of party. 
its composition. 
operations of. 
on Snoqualme Pass. 
report of Cascade Mountains survey. 
report from Ivetetas. 
report in full. 
report of his operations.. 
instructions to.. 
orders on. 
Medicine Lodge creek . 
Medicine river . 
Messing .— - - 
Meteorology of field explored..... 
Mowry’s report, Cascade range.. 
Grover’s report, Fort Benton to Wallah-Wallah. 
Tinkham’s, on snow in Eocky and Cascade mountains and Bitter Eoot valley. 
Eice, Sibley, and Culbertson, on winter climate from Mississippi river to Eocky mountains 
286-290 
219 
8 
116 
429 
266 
.. 521-522 
. 3,157,449-451 
.. 53,97,550 
.. 276-281 
.. 97,547-548 
.. 93 
. 229-230,625-629 
. 165 
.. 489 
5,163-164,249,263,304, 490 
.. 92 
.. 74,76 
.. 3-4 
. 80,188 
.. 80 
. 117 
. 180-183 
24-26 
188-202 
620-621,622-624 
203 
66 
330 
166 
47 
128-140 
389-395 
396-399 
399- 400 
400- 402 
