130° 
i mous on 120 feet wide, timbered principally With es ; 
d here and there an occasional large tree. At 3 in the morning I 
iano vation of an emersion of the fist satellite of Jupiter, with ~ 
observations. The heavy wagons have so completely. pulverized the: 
hat clouds of fine light.dust are raised by the slightest wind; waking» 
sometimes aeey disagreeable. 
our encampment at 6 in the morning, we travelled 
_ the roz 
. August 17.—Leavin ng 
m, which is about two miles. wide, bordered by low hills, in 
and very distinct vegetable fossils. In® 
. “al the bottoi 
which iMtrata-c contained handsome 
a short distance farther up the river, and underlying. ao pel a 
ly limestone.  Crossin gon thd 
um of an impure or argillaceous 
s fork, weiss itis qne fom deop and forty wide ; with : ar water 
si see 
ds inn 
Ui Red in.aine no acpbavi sixty feet breadth, anda Cae 
rowth of grass. The road here makes a traverse of twelv 
| i tae Passing in the way iptenisletecbtehilte; 
: dred feet. high, with frequent and nearly vertical escarp- 
of a green stone, gpnsisting of an argillaceous carbonate of lime, al- 
with strata of an iron-brown limestone, and worked into pietur-~ 
one Dy wind and rain, at 2 in the afternoon we reached. the river 
e. to-day 21.miles. Since crossing the great; dividing. 
very cee in ei en om : 
ock y mountains, plants have 
ered principally prihase temisia. 3 
noon 0 on iba. river, a ‘short pete aba at 
onee woman took leave of us here, e expecting to 
t Bridger fort, which is only a mile or two. — 
e encamped ‘aia salt creek; about 
_In the evening we e 
ing to-day oe elle seen ite 
are t satellite under fave ~~ circumstance, 
TE Ne ae ce ae 
