APPENDIX D 
BAROMETRICAL AND THERMOMETRICAL OBSERVATIONS, WITH DATA 
EOR CONSTRUCTING PROEILES OE THE TRAVELLED ROUTES. 
I. Route of the main party from Benicia to the point where the command separated, near the 
Three Sisters, Oregon Territory. 
Date. 
Station. 
Hour. 
Number of barometer. 
Reading of barometer. 
Attached thermometer. 
Detached thermometer. 
Corrected reading of 
barometer. 
Mean of corrected read¬ 
ings of barometer. 
Elevation above mean 
tide at Benicia. 
Distance from preceding 
station. 
Distance from Benicia. 
Remarks. 
1855. 
Inches. 
Inches. 
Inches. 
Feet. 
Miles. 
Miles . 
1060 
29.891 
69.0 
68.0 
29.937 
9 
1060 
29.994 
78.0 
79.0 
29.932 
9 
1061 
29.954 
79.0 
79.0 
29.939 
9 
1068 
29.968 
79.0 
79.0 
29.944 
9 
1089 
29.956 
78.0 
79.0 
29.958 
9 
12 m. 
1060 
29.972 
85.0 
81.0 
29.933 
port. 
9 
1061 
29.976 
85 0 
81.0 
29.937 
9 
1068 
29.982 
85.0 
81.0 
29.934 
9 
1089 
29.960 
85.0 
81.0 
29.936 
9 
1060 
29.941 
88 0 
82.0 
29.931 
9 
1061 
29.944 
88.0 
82.0 
29.934 
9 
iocs 
29.951 
88.0 
82 0 
29.932 
9 
1089 
29.930 
86.0 
82.0 
29.940 
9 
1060 
29 938 
86.0 
72.0 
29.930 
9 
1061 
29.942 
86.0 
72.0 
29.934 
9 
1068 
29.944 
86 0 
72.0 
29.925 
9 
1089 
29.926 
86.0 
72.0 
29.933 
9 
1060 
29.958 
62.0 
59.0 
29.937 
9 
1061 
29.954 
62.0 
59.0 
29.933 
9 
1068 
29.984 
62.0 
59.0 
29.954 
9 
1089 
29.960 
62.0 
59.0 
29.954 
10 
1060 
30.026 
59.0 
58.0 
29.915 
10 
1061 
30.024 
59.0 
58.0 
29.913 
10 
1068 
30.032 
59.0 
58.0 
29.912 
10 
1089 
30.014 
59.0 
58.0 
29.918 
10 
1060 
30.074 
67.5 
29.940 
10 
1061 
30.072 
69.0 
29.933 
10 
..do. 
1068 
30.081 
68.0 
65.5 
29.936 
10 
1089 
30.058 
68.0 
65.5 
29.937 
29.934 
101 
2.8 
10 
1060 
30.025 
84.0 
79.0 
29 988 
10 
1060 
29.996 
68.0 
66.0 
29.985 
11 
1060 
29.990 
64.0 
61.0 
29 974 
29.982 
69 
12.2 
15.0 
11 
1060 
29.850 
97.0 
96 0 
29.749 
11 
1060 
29.810 
75.0 
68.0 
29.744 
ia 
1060 
29.821 
69 0 
67 0 
29 745 
29.746 
304 
11.2 
26.2 
12 
Camp 4, Cache creek. 
1060 
29.847 
92.0 
89.0 
29.746 
13 
1060 
I 29 772 
54 0 
52 0 
29 740 
29.743 
295 
27.2 
53.4 
13 
1 Camp 5, near Nicholas. 
9 p. m_ 
1060 
29.673 
70.0 
68.0 
29.748 
5 AA 
