METEOROLOGICAL OBSERVATIONS, 
603 
Barometric Headings at Columbia Barracks —Continued. 
Date. 
Hour. 
Standard, 
No. 1. 
Attached 
therm. 
Air ther¬ 
mometer. 
Wet-bulb. 
Remarks. 
July 9 
8 a. m. 
30.200 
30.218 
57.5 
58 
52.5 
Pleasant. 
12 m. 
.200 
.256 
68 
68 
59 
Do. 
4 p. m. 
.130 
.180 
70.5 
70.5 
61 
Do. 
8 p. m. 
.130 
. 150 
66. 5 
68 
58.5 
Do. 
10 
8 a. m. 
.100 
. 137 
61.5 
62 
57 
Do. 
12 m. 
.090 
. 110 
65.5 
65.5 
59 
Rainy; wind N.W. 
4 p. m. 
.050 
.128 
63.5 
63.8 
57.5 
Rain at intervals; quantity .125 
inch. 
11 
8 a. m. 
.050 
.071 
57 
57 
53 
Cloudy; w ind south. 
12 m. 
.110 
. 130 
61.8 
62.2 
57 
Rain at intervals. 
4 p. m. 
. 120 
. 130 
58.4 
58.5 
54.2 
Cloudy; wind S W. 
8 p. m. 
. 140 
. 157 
57. 5 
58.0 
55 
Rain, with lightning; (very 
rare.) 
12 
12m. 
.280 
.258 
64.2 
64 
57 
Cloudy; south wind. 
4 p. m. 
.230 
.245 
69.5 
69 
60.2 
Cloudy ; amount of rain in last 
24 hours, .175 inch. 
8 p. m. 
.220 
.227 
63.5 
64.5 
57 
Smoky; fair. 
13 
8 a. m. 
. 140 
.150 
56.5 
56.7 
52 
Cloudy; west wind. 
12 m. 
. 100 
.163 
70.5 
70 
61 
Fair. 
4 p. m. 
.060 
.059 
78 
77.2 
62.2 
Fair; smoky. 
8 p. m. 
.030 
.040 
67 
68.5 
61 
Fair. 
14 
8 a. m. 
.140 
. 100 
65.5 
65. 5 
59 
Do. 
12 m. 
. 140 
.144 
76 
75.5 
62.5 
Smoky; wind south. 
4 p. m. 
. 120 
. 128 
81 
80.7 
65 
Fair. 
8 p. m. 
.100 
. 101 
74.5 
75 
64 
Fair; smoky. 
15 
8 a. m. 
.080 
.090 
67.5 
68 
62 
Fair; wind west. 
12 m. 
.050 
.080 
80 
79 
67.5 
Do. 
4 p. m. 
.000 
.030 
85.2 
85 
70.2 
Do. 
8 p. m. 
.000 
.003 
75 
76 
65.7 
Fair; wind north. 
16 
8 a. m. 
. 120 
. 101 
62.5 
62 
59 
Rainy; wind S.E. 
Mean of 48 
12 m. 
observations... 
. 100 
30.120 
.104 
30.130 
65.7 
66 
62 
Cloudy; wind S.E. 
Note. —Several of these observations are obvious errors of reading. Those marked * are rejected in the comparison. 
Barometric and Meteorological Observations on route from Columbia Barracks to Fort Colville. 
Locality and date. 
Hour. 
Barometer 
No. 1. 
Attached 
therm. 
First Plain, Camp No. 1. 
July 20__......... 
Sunrise_ 
30. 040 
52.5 
20. 
8 a. m ____ 
. 000 
73. 4 
20. 
29. 991 
77 
20. 
10 a. m ...... 
.991 
78 
20. 
12 m. 
.999 
82.5 
20.. 
30. 003 
20. 
2 p. in....... 
29. 970 
88.5 
20. 
3 p.in ....... 
.938 
89.5 
20. 
4 p. in ....... 
.959 
87.5 
20. 
5 p. m ..._ 
.890 
80.5 
20... 
6 p. in....... 
.855 
76.5 
20. 
7 p. m . 
.958 
73 
21. 
Sunrise_ 
.920 
50.5 
21. 
6 a. m....... 
.850 
67.5 
Mean_.... 
Camp No. 2, Callissis or 
Fourth Plain. 
July 21. 
3 p. m. 
30. 000 
98 
21. 
5 p. m. 
29.797 
98 
Barometer 
corrected. 
Air ther- 
momet’r. 
Wind. 
Remarks. 
29.976 
W. 
Two miles from Columbia 
barracks. 
.880 
73.5 
W. 
Smoky. 
.861 
77 
w. 
Fair. 
.858 
79.5 
w. 
Fair. 
.855 
81 
w. 
Pleasant. 
.852 
83. 5 
w. 
Pleasant. 
.810 
88.5 
NE. 
Fair. 
.775 
88.5 
NE. 
Fair. 
.801 
83 
NE.. 
Fair. 
.751 
79 
NE. 
Fair. 
.727 
76.5 
NE. 
Fair. 
.839 
72 
NE. 
Pleasant. 
.861 
50 
NE. 
Fair. 
.746 
60 
NE. 
Fair. 
29. 828 
74.6 
29. 814 
98.5 
W. 
Very clear and dry. 
.612 
99 
W. 
Very clear and dry. 
