BAROMETRICAL AND THERMOMETRICAL OBSERVATIONS. 
57 
APPENDIX D—Continued. 
IV. Barometrical observations taken at Fort Reading, California , during the operations of the 
part ies in-the field. 
Date. 
BAROMETER NUMBER 1068. 
ATTACHED THERMOMETER. 
DETACHED THERMOMETER. 
6 A. M. 
9 A. M. 
12 M. 
3 i>. M. 
6 1>. M. 
9 r. M. 
6 A. M. 
9 A. M. 
12 M. 
3 P. M. 
6 P. M. 
9 P. M. 
6 A. M. 
9 A. M. 
1 
12 M. 
3 p. M. 
6 P. M. 
9 P. M. 
1855. 
Inches. 
Inches. 
Inches. 
Inches. 
Inches. 
Inches. 
July 28. 
29.602 
29.636 
29.632 
29.602 
29.562 
29.544 
80 
84 
90 
98 
90 
82 
72 
86 
96.5 
99.5 
96 
81.5 
29. 
29.602 
29.636 
29.626 
29.582 
29.544 
29.603 
81 
85 
94 
99 
94 
80 
72.5 
87.5 
97.5 
102 
96 
82.5 
30. 
29.630 
29.655 
29.636 
29.607 
29.523 
29.564 
80 
83 
92 
96 
92 
78 
74 
85 
96 
97 
93 
87 
31. 
29.688 
29.654 
29.636 
29.504 
29.438 
29.505 
79 
81 
90 
93 
90 
80 
72.5 
84 
96 
95 
91 
88 
Aug. 1. 
29.596 
29.594 
29.582 
29.513 
29.470 
29.472 
80 
87 
93 
96 
92 
86 
77 
88 
95 
96.5 
90.5 
85 
2. 
29.546 
29.514 
29.562 
29.530 
29.502 
29.513 
73 
87 
93 
96 
93 
86 
72.5 
88.5 
94.5 
96 
93.5 
84 
3.. 
29.568 
29.608 
29.612 
29.584 
29.594 
29.540 
72 
88 
93 
96 
94 
88 
72.5 
88 
94 
92 
94 
83 
4. 
29.642 
29.641 
29.688 
29.578 
29.612 
29.604 
72 
83 
93 
96.5 
93 
84 
72 
83.5 
94 
96 
93 
82 
5. 
29.632 
29.690 
29.683 
29.578 
29.612 
29.604 
73 
84 
93 
96 
93 
84 
73 
85 
93.5 
96 
93 
82 
10. 
29.424 
29.44G 
29.342 
29.406 
29.395 
80 
85 
90 
93 
85 
80 
85 
90.5 
93.5 
84 
ii. 
29.420 
29.449 
29.498 
29.425 
29.415 
29.445 
74 
70 
86.5 
91 
86 
81 
74.5 
79 
87 
91 
86 
81.5 
12. 
29.580 
29.580 
72.5 
83 
71 
84 
13. 
29.708 
73 
73 
15. 
29.684 
29.694 
29.688 
29.660 
29.630 
29.616 
71.5 
82 
90 
94 
80.5 
77.5 
72 
82.5 
91 
94 
81 
78 
10. 
23.656 
29.664 
29.650 
29.514 
29.588 
29.568 
69 
80 
91 
96 
95 
77 
69 
80 
92 
96 
94 
77 
17........ 
29.611 
29.618 
29.610 
29.581 
29.586 
29.528 
69 
84.5 
94 
100 
95 
78 
69.5 
85 
94 
98 
95 
78 
18. 
29.638 
29.618 
29.610 
29.582 
29.588 
29.568 
79 
83.5 
95 
102 
97 
79 
77 
84 
95 
102 
98 
99 
19... 
29.654 
29.664 
29.650 
29.514 
29.588 
29.568 
78 
84 
96 
100 
94 
78 
78 
84 
96 
101 
94 
78 
20. 
29.638 
29.618 
29.610 
29.582 
29.587 
29.564 
77 
8G 
99 
107 
97 
79 
77 
86 
99 
107 
97 
79 
21. 
29.684 
29.694 
29.688 
29.660 
29.630 
29.616 
80 ' 
89 
98 
100 
84 
76 
80 
89 
98 
100 
84 
76 
22 . 
29.632 
29.690 
29.515 
29.444 
29.390 
29.392 
78 
86 
94 
99 
80 
78 
78 
86 
94 
99 
80 
78 
23. 
29.642 
29.641 
29.686 
29.578 
29.612 
29.604 
62 
90 
97 
101 
83 
77 
82 
90 
97 
101 
83 
77 
24. 
29.536 
29.525 
29.519 
29.472 
29.494 
29.512 
82 
90 
95 
100.5 
95 
84 
82 
84 
93.5 
102 
96 
84 
25. 
29.506 
29.525 
29.515 
29.472 
29.494 
29.513 
71 
91 
95 
102 
96 
80 
71 
90 
94 
103 
97 
81 
26. 
29.504 
29.720 
29.688 
29.571 
29.676 
29.660 
70 
84 
93 
99 
80 
78 
70 
84 
93 
99 
80 
78 
27. 
29.677 
29.572 
29.651 
29 600 
91 
97 
76 
70 
94 
98 
76 
71 
29.712 
29.636 
29.621 
29,610 
29.560 
73 
77.5 
83 
80 
75 
73.5 
78 
83 
80 
75 
6.... 
29.600 
29.682 
29.636 
29.630 
29.616 
29.611 
75 
77 
78 
88 
80 
76 
75 
77 
78 
88 
80 
76 
7.... 
29.680 
29.671 
29.636 
29.650 
29.610 
29.611 
66 
78 
79 
87 
81 
74 
66 
78 
79.5 
88 
81 
74 
8. 
29.618 
29.650 
29.614 
29.602 
29.582 
29.578 
64 
75 
91 
94 
90 
77 
64 
7G 
91.5 
94 
90 
77 
9. 
29.618 
29.651 
29.636 
29.620 
29.582 
29.560 
63 
78 
90 
93 
88 
74 
63 
78 
90 
93 
88 
74 
10. 
29.628 
29.612 
29.614 
29.602 
29.510 
29.578 
65 
80 
92 
96 
85 
75 
64 
80 
92 
95 
85 
75 
11. 
29.600 
29.650 
29.636 
29.602 
29.502 
29.500 
70 
84 
97 
98 
90 
78 
70 
84 
97 
98 
90 
78 
12. 
29.652 
29.682 
29.601 
29.650 
29.560 
29.568 
59 
75 
89 
92 
88 
77 
59 
75 
89 
94 
88 
77 
13........ 
29.680 
29.682 
29.601 
29.630 
29.500 
29.560 
64 
80 
90 
95 
87 
74 
64 
80 
90 
95 
87 
74 
14.... ... 
! 29.600 
29.682 
29.636 
29.638 
29.616 
29.611 
61 
78 
88 
91 
88 
76 
61 
78 
88 
92 
88 
76 
15. 
29.618 
29.650 
29.614 
29.602 
29.582 
29.578 
63 
79 
90 
92 
80 
71 
64 
80 
90 
93 
80 
71 
16.... 
29.680 
29.671 
29.650 
29.650 
29.610 
29.611 
70 
84 
92 
96 
84 
77 
71 
84 
92 
96 
84 
77 
17. 
29.688 
29.610 
29.600 
29.560 
29.600 
29.512 
75 
83 
97 
98 
83 
71 
75 
83 
97 
98 
63 
71 
18. 
29.671 
29.650 
29.636 
29.600 
29.561 
29.561 
71 
85 
90 
94 
80 
70 
71 
86 
91 
95 
80 
70 
19. 
29.650 
29.610 
29.600 
29.560 
29.510 
29.500 
58 
78 
84 
90 
79 
70 
58 
79 
85 
92 
79 
70 
20. 
29.642 
29.612 
29.610 
29.600 
29.561 
29.560 
54 
76 
82 
89 
78 
69 
54 
79 
83 
90 
78 
68 
21. 
29.631 
29.600 
29.610 
29.500 
29.510 
29.500 
60 
80 
88 
92 
81 
70 
60 
80 
88 
93 
81 
70 
22. 
29.636 
29.610 
29.600 
29.561 
29.560 
29.561 
72 
85 
90 
94 
77 
64 
72 
85 
90 
94 
77 
64 
23. 
29.621 
29.610 
29.600 
29.510 
29.500 
29.512 
70 
84 
88 
93 
79 
60 
70 
84 
88 
93 
79 
61 
24. 
29.700 
29.734 
29.736 
29.700 
29.672 
29.680 
61 
71 
78 
81 
75 
1 70 
58 
71. 
5 78 
83 
75 
70 
8 AA 
