DETERMINATION OF ALTITUDES BY BAROMETER, 
123 
Data.—Observations in Canada de las Uvas. 
Date. 
Station. 
Hour. 
* 
Reading 
of barometer. 
Attached 
thermometer. 
Detached 
thermometer. 
Altitude by spi¬ 
rit level above 
depot camp. 
Distance from 
depot camp. 
1853. 
h. m. 
Inches. 
o 
o 
Feet. 
Feet. 
September 28.... 
37 & 58 
6. 00 p. m. 
28,425 
86. 0 
85. 0 
193.4 
67,740 
56 
4.15 p. m. 
28,240 
'87. 0 
84. 0 
384.3 
70,879 
49 
3.15 p. m. 
27. 900 
79. 0 
79. 0 
720. 4 
75,971 
40 
2.15 p. m. 
27,718 
77. 5 
77. 0 
917.4 
79,237 
34 
1. 20 p. m. 
27,600 
81.5 
81. 0 
1,055. 8 
81,474 
27 
0. 30 p. m. 
27,520 
85.0 
81.0 
1,158. 6 
83,561 
22 
12.00 m. 
27,420 
75. 5 
75. 5 
1,260.8 
85,312 
18 
11. 00 a. m. 
27,305 
78. 0 
77.5 
1,387. 0 
87,719 
14 
10. 00 a. m. 
27,240 
71.5 
71.5 
1,466. 6 
89,394 
7 
9. 00 a. m. 
27,080 
66. 0 
65. 5 
1,628.0 
91,996 
September 30_ 
1 
7. 40 a. m. 
26,922 
72. 0 
70. 0 
1,774.4 
95,369 
3 
8. 00 a. m. 
26,898 
74. 0 
70. 0 
1,809. 7 
97,732 
6 
8. 20 a. m. 
26,861 
75. 0 
73. 0 
1,874.0 
99,873 
9 
8. 45 a. m. 
26,810 
77.0 
74. 0 
1,931. 1 
102,424 
10 
9. 00 a. m. 
26,790 
81. 0 
75. 0 
1,967.7 
104,574 
12 
10. 00 a. m. 
26,744 
83. 0 
79. 0 
2,045.0 
108,557 
15 
11. 05 a. m. 
26, 640 
82. 0 
81. 0 
2,160. 0 
112,167 
18 
1. 25 p. m. 
26,364 
85. 0 
83. 0 
2,372. 5 
121,382 
22 
2. 30 p. m. 
26,152 
85. 0 
84. 0 
2,618.6 
125,860 
27 
3. 15 p. m. 
25,960 
82. 0 
82. 0 
2,809.5 
128,834 
October 1.... 
31 
10. 30 a. m. 
26,137 
84. 0 
84. 0 
2,758. 0 
132,021 
33 
11. 40 a. m. 
26,428 
83. 0 
82. 0 
2,435. 2 
135,885 
38 
1. 10 p. m. 
26,557 
84. 0 
84. 0 
2,280. 2 
140,390 
40 
3. 00 p. m. 
26, 684 
86. 0 
86. 0 
2,131. 4 
146,095 
45 
4. 30 p. m. 
26,726 
86. 0 
78. 0 
2,068.4 
153,300 
October 2.... 
47 
10. 15 a. m. 
26,710 
86. 5 
84. 0 
2,172.0 
156,200 
51 
11. 00 a. m. 
. 26,838 
86.0 
85. 0 
2,002. 7 
158,704 
53 
12.00 m. 
26, 930 
90. 0 
89.0 
1,909.7 
161,175 
55 
0. 30 p. m. 
26,910 
93. 0 
90.0 
1,914.4 
163,885 
58 
1. 30 p. m. 
26,950 
90. 0 
90. 0 
1,874.7 
167,988 
61 
2. 30 p. m. 
26,882 
91. 0 
89. 0 
1,922. 3 
.175,360 
64 
4. 00 p. m. 
26,930 
91. 5 
87. 0 
1,869. 6 
179,932 
October 3 .... 
66 
8. 30 a. m. 
27,070 
88. 0 
80. 0 
1,817.7 
182,796 
68 
9. 00 a. m. 
27,128 
86.5 
86. 5 
1,750. 4 
186,053 
74 
10. 45 a. m. 
27,190 
. 90.0 
89.0 
1, 678. 5 
192,315 
September 29.... 
Camp. 
6. 00 p. m. 
26,835 
67. 0 
67. 0 
1,764.0 
95,369 
30.... 
Camp. 
6. 00 a. m. 
26,860 
56. 0 
58. 0 
1,764.0 
95,369 
October 1_ 
Camp. 
6. 00 a. m. 
27,000 
67.0 
65. 5 
1,764. 0 
95,369 
October 4.... 
Camp. 
6. 00 p. m. 
26,987 
70. 0 
70. 0 
1,764.0 
95,369 
October 5.... 
Camp. 
6. 00 a. m. 
26,973 
49.0 
51. 0 
1,764. 0 
95,369 
October 2.... 
Camp. 
6. 00 a. m. 
26,965 
44. 0 
45. 0 
1,772. 4 
192,315 
Camp. 
6. 00 p. m. 
27,018 
75. 0 
76. 0 
1,772.4 
192,315 
October 3.... 
Camp. 
6. 00 a. m. 
26,990 
47.5 
48.0 
1,772.4 
192,315 
Camp. 
11. 30 a. m. 
27,090 
88. 0 
87. 5 
1,772.4 
192,315 
