[14] 118 
Silica - - - “ ee 
Vegetable : inaker’- - - - - - - .20 
Moisture and Joss - - - - x 4,61 
= 100.00 
P om&t ll oclt, when the vscipatitetd of the air was 8°, that of the 
‘water in this was 60.5°; and that of the upper sprigs which issued from 
the flat rock, more exposed to the sun, was 69°. Atsunset, when the tem 
| meee on the air was 66°, that of the lower springs was 58°, and that of 
the up 
Salons 19. et beautiful and clear morning, with a slibht breeze from the 
goleens 7 xe temperature of air at sunrise being 57.5°. At this time 
the temperature of the lower spring was 57.8°, and” that of the upper 
% “The trees i in the neighborhood were birch, willow, pine, and an n oak re- 
quercus alba. Inthe shrubbery along the river are currant bushes, 
(ribes,) of which the fruit has a singular piney flavor ; and on the mountain 
side, ina ted gravelly soil, is a remarkable coniferous tree, (perhaps an 
abies,) having the leaves ss long, broad, and scattered, with bushes 
Of spirea arizfolia By ou r observations, this place i A 6 350 feet above 
_ the sea, in _— 38° 52' 10" and longitude 105° 22" 4 
_ ~ Resuming our journey on this morning, we descended ae river, in order 
to reach the Satre of the per fork, ro. L proposed to ascent. - dh 
bar of the river here is very much broken. There is a  andesulp 
- bottom on the right, and both banks 3 are exceedingly picturesque— 
J north to south. About three miles below the springs, on the ri 
_ the river, isa nearly perpendicular limestone rock, presenting a nite y 
- ~mbroken surface, twenty to forty feet high, containing very great numbers 
ofa large univalve shell, which 7 Soa to ae to the genus inoceramus, 
and i in the appendix is designated by th 
In contact with this, to the hatin) was iabihies stratum of limestone, 
- Containing fossil shells of a different character; -and still higher up on the 
_ Stream were parallel strata, consisting of a compact somewhat crystalline 
: . ,and argillaceous bituminous limestone in thin layers. During 
a we travelled tp the’ eastern er of the Fontaine-qui-bouit 
‘Tive ng roughened by freque p gullies timbered with 
Samed halted to noon on a small rape of this s kawenan mbered prin- 
ly with the narrow-leaved cottonwood, ( popilus ar stifolia,) called 
u adians liard amére. Ona hill, near by, two remarkable 
_ _ columns fF grayish-white conglomerate rock, one of which was abont 
are 
hous conglomerate, forming black oe and adding very 
mnar effect at a distance. This rock is very destructible 
ede est re bee a and the hill, of whidly: they formerly consti- 
A ery of the gun gun carriage was broken in the afternoon; and we made 
an early halt, the stream being from twelve to twenty feet wide, with clear 
: . As usual, the clouds had gathered to a storm over the mountains, 
: and we had a showery evening. At sunset the thermometer stood : at 62°, 
-and our elevation above the sea was 6,530 fect. 
"7 
Strata of red rock, in nearly perpendicular walls, crossing the "does ‘hae : 
t bat " 
ite 
