BAROMETRIC OBSERVATIONS, 
251 
OBSERVATIONS—Continued. 
Station. 
Date. 
Hour. 
No. of barometer. 
First reading. 
Attached thermome¬ 
ter. 
Air thermometer. 
Reading corr. for con¬ 
stant error, temp, j 
and hor. variation. 
Corrected mean ba- | 
rometer reading. 
Wind. 
Clouds. 
Direction. 
Force. 
1854. 
Station 4... 
Jan 24 
12.25 p. m. 
cis. 
24. 707 
53. 5 
24. 652 
Camp 106_ 
_do_ 
1. 30 p. m_ 
cis. 
24. 756 
56. 7 
24. 735 
| 
Do_ 
Jan. 25 
10.15 a. m. 
783 
. 710 
48 
. 586 
!. 
Bivouac l 4 _ 
_do_ 
4. 30 p. m. 
783 
25. 036 
44. 7 
24. 967 
Do. 
Jan. 26 
Sunrise._ 
783 
. 162 
25 
25. 116 
0 
Cumulus, 9_ 
9. 10 a. m_ 
783 
. 249 
36. 7 
. 155 
0 
Station 9. in canon 
_do_ 
1. 50 p. m 
783 
25. 644 
43. 5 
25. 617 
Station 10, top of 
_do_ 
2 p. m_ 
783 
25. 362 
56. 5 
25. 302 
canon. 
Bivouac 2 _ 
_do_ 
3. 50 p. m. 
783 
25. 388 
45. 3 
25. 377 
Sunset .... 
783 
. 394 
38. 7 
. 384 
N. E . 
0. 2 
Do. 
Jan. 27 
Sunrise_ 
783 
. 499 
28. 5 
. 446 
N. E 
0. 2 
9 a. m... 
783 
. 558 
37. 6 
. 465 
N. E. - 
1 
Station 2... 
_do_ 
783 
24. 799 
53. 5 
24. 689 
Bivouac 3 4 _ 
_do_ 
Sunset_ 
783 
25. 902 
53. 7 
25. 856 
0 
Cirrus, 3_ 
Do.. 
Jan. 28 
Sunrise_ 
783 
. 747 
37. 7 
. 674 
0 
Cirrus, 3_ 
9 a. in_ 
783 
.776 
48. 8 
. 657 
0 
Cirrus, 5_ 
Station 5__ 
_do_ 
2 p. m_ _ 
783 
26. 634 
73. 7 
26. 535 
Bivouac 4 4 _ 
_do_ 
Sunset_ 
783 
26. 092 
57. 5 
26. 037 
N __ 
Cumulus, 5_ 
Do.. 
Jan. 29 
Sunrise_ 
783 
. 062 
39. 3 
25. 984 
0 
Cirrus-strat., 8 
9. 15 a. m. 
783 
. 124 
57. 8 
. 9S4 
Bivouac5 4 , Cactus 
_do_ 
1. 15 p. m. 
783 
25. 094 
78. 5 
24. 982 
Pass. 
Sunset.... 
783 
. 026 
47. 8 
. 986 
N. N.E. 
0. 5 
Cirrus, 2. 
Do. 
Jan. 30 
Sunrise_ 
783 
. 022 
39. 8 
. 944 
N. N.E 
0. 5 
9 a. m_ 
783 
. 082 
48. 3 
. 964 
N.N W 
1 
3 p. m_ 
783 
. 060 
68. 2 
. 988 
E_ 
3 
Cirrus, 1_ 
Sunset_ 
783 
. 022 
49 
. 987 
E.._. 
0. 5 
Cirrus, 4_ 
Do. 
Jan. 31 
Sunrise_ 
783 
24. 950 
45. 3 
. 860 
0 
9 a. ni._ 
783 
. 983 
55. 8 
. 851 
E. N. E. 
2 
Do. 
Feb. 1 
Sunrise_ 
783 
. 788 
45. 8 
. 697 
0 
10.15 a. m. 
783 
. 782 
61. 7 
. 627 
0 
Big Horn Spring.. 
Feb. 3 
11.19 a. m. 
783 
27. 056 
71. 5 
26. 859 
Bivouac 2 .. 
_do_ 
3. 15 p. m. 
783 
27. 630 
73. 1 
_ 27. 536 
Sunset.... 
783 
. 622 
65. 5 
. 541 
0 
Do. 
Feb. 4 
Sunrise_ 
783 
. 575 
43. 3 
. 485 
W-. 
0. 8 
Cirro-cum., 8- 
9 a. m_ 
783 
. 622 
56.5!_ 1 
1 1 
. 480 
w _ 
1 
Cirrus, 7. 
January 25.—A cloudy sky and a raw south wind produced a chilly day. From sunset to 9 p. m., there was a slight 
rain, followed by a light fall of snow. 
January 26.—The morning was cloudless. A light air came from the east, attended, as usual, by a dry atmo¬ 
sphere and a deep blue sky. There was a storm last night, which spread over the ground a thin coat of snow. The wind 
had shifted from south to S.W. The day cloudless, with wind from the north ; the evening also clear, and a light breeze 
blowing from the N.E. The atmosphere beautifully transparent, and the stars brighter than usual. 
January 29.—At sunrise, cirro-stratus clouds stretched from the east to the west. The sky soon became clear, and the 
thermometer, at mid-day, rose to 78°. 5. Towards evening there was a breeze from the east. 
January 30.—9 a. m.,. smoky atmosphere. 
