BAROMETRIC OBSERVATIONS, 
215 
OBSERVATIONS—Continued. 
Station. 
Date. 
Hour. 
No. of barometer. 
First reading. 
Attached thermome¬ 
ter. 
Air thermometer. 
Reading corr. for con¬ 
stant error, temp, 
and hor. variation. 
Corrected mean ba¬ 
rometer reading. 
Wind. 
Clouds. 
Direction. 
Force. 
1853. 
July 11 
9J a. m ... 
781 
29. 770 
80. 6 
29. 582 
N. W .. 
1 
Nimbus, 2_ 
783 
. 768 
80. 3 
. 588 
N. W . - 
1 
_do.- 
785 
. 752 
80. 5 
.584 
N. W .. 
1 
_do. 
784 
. 751 
80. 6 
. 575 
N. W .. 
1 
_do. 
790 
. 718 
80. 6 
.581 
N. W .. 
1 
-do. 
12m. 
781 
. 757 
83. 2 
. 591 
s.w... 
1 
Nimbus, 3_ 
783 
. 755 
82. 5 
. 578 
s.w... 
1 
_do. 
785 
. 741 
82. 8 
. 577 
S.W. -- 
1 
_do--_ 
784 
. 667 
82. 8 
. 491 
S.W--- 
1 
_do. 
790 
. 710 
82. 5 
. 577 
s.w... 
1 
_do_ 
p. nr... 
781 
. 709 
85. 2 
. 526 
s.w... 
0 
Nimbus, 1-... 
783 
. 696 
85 
. 526 
S.W.-- 
0 
_do. 
785 
. 679 
85 
. 520 
S.W--- 
0 
_do_. 
784 
. 688 
85. 4 
. 508 
S.W--- 
0 
_do. 
790 
. 650 
85. 1 
. 521 
S.W--- 
0 
_do.- 
6 p. m_ 
781 
. 692 
84. 8 
. 525 
0 
None_ 
783 
. 681 
84. 2 
. 524 
0 
None_ 
785 
. 654 
84. 6 
. 520 
0 
None_ 
784 
. 779 
84 
. 621 
0 
None_ 
790 
. 638 
84. 6 
. 522 
0 
None_ 
Do . 
July 12 
9 a. m_ 
781 
N.N.W. 
1 
Nim. & cir., 2. 
783 
. 748 
79 
. 572 
N.N.W. 
1 
_do_ 
785 
. 726 
79 
. 568 
N.N.W. 
1 
_do_ 
784 
. 720 
78. 9 
. 544 ' 
N.N.W. 
1 
_do_ 
790 
. 696 
79 
. 563 
N.N.W. 
1 
-do_ 
12J p. m.. 
783 
. 737 
83. 7 
. 560 
0 
Cumulus, 5_ 
785 
. 726 
83 
. 564 
0 
None_ 
784 
. 724 
83. 9 
. 542 
0 
None_ 
790 
. 690 
83. 5 
. 554 
29. 560 
0 
None__ 
Camp Wilson ... - 
_do_ 
8 J a. m_ 
781 
29. 755 
79. 1 
N.N.W. 
1 
Nim. & cum., 1 
12 m_ 
. 774 
87. 8 
28. 3c 
0 
Cumulus, 3_ 
3 p. m_ 
. 733 
88. 3 
27. 5c 
0 
Cumulus, 3_ 
6 p. m_ 
. 708 
83. 5 
27. 4 
0 
None_ 
Do. 
July 13 
8 a. m_ 
781 
. 798 
79. 7 
26. lc 
. 617 
N.N.W. 
1 
None_ 
10£ a. m .. 
781 
.816 
85.8 
29. 9c 
. 615 
N.N.W. 
1 
Cumulus, 1_ 
12 m...... 
781 
.795 
90. 1 
32.4c 
.592 
_ 
S.W... 
3 
Nim. & cum., 4 
2 p. m- 
781 
. 758 
88. 9 
30. 8c 
.572 
_ 
s. . 
1 
Nim. & cum., 3 
4 p. m- 
781 
.725 
78.5 
26 c 
.577 
S.E_ 
2 
Nimbus, 8_ 
6 p. m_ 
781 
. 733 
83. 2 
28. 4c 
. 576 
0 
None_ 
8 p. m_ 
781 
. 730 
86. 9 
25. 5c 
. 553 
0 
None_ 
10 p. m_ 
781 
. 618 
; 75. 6 
24. 8c 
. 459 
0 
None_ 
Do_ 
July 14 
6 a. m_ 
781 
. 786 
74. 5 
23. 9c 
. 631 
_ 
0 
None_ 
8 a. m_ 
781 
. 797 
. 78.2 
25. 0c 
. 622 
0 
None_ 
9 a. m_ 
781 
. 796 
81. 0 
27. 0c 
. 609 
1 
0 
None_ 
10 a. m_ 
781 
. 800 
84. 1 
. 601 
S.W 
1 
Nimbus, 1 _ _ _ _ 
11a. m_ 
781 
. 799 
87. 2 
. 595 
s.w 
1 
Nimbus, 2_, 
12m.. 
781 
. 810 
90. 5 
. 606 
. 
s w 
1 
Nimbus, 1 
1 p. m_ 
781 
. 796 
91. 2 
. 593 
. 
s.w 
1 
Nimbus, 2_-._ 
2 p. m_ 
781 
. .792 
91. 6 
. 592 
0 
Nimbus, 2_ 
3 p. m_ 
781 
. 781 
90. 2 
. 589 
0 
Cum. & nim., 1 
4 p. m_ 
781 
. 781 
93. 6 
. 589 
0 
Cumulus, 1_ 
5 p. m_ 
781 
. 752 
87. 9 
. 579 
s. . 
1 
None_ 
6 p. m_ 
781 
. 741 
86. 9 
. 570 
0 
Cum. & nim., 1 
7 p. m_ 
781 
. 731 
1 83 
. 567 
0 
None_ 
8 p. m_ 
781 
.717 
79. 5 
. 560 
0 
None__ 
9 p. m- 
781 
.714 
77. 5 
. 
.559 
0 
None. 
July 10.—a. m., rain 1-^ in. during the day on the 10th ; ceased 2\ p. m.; cloudy rest of the day and evening. 
July 11.—12 m., sultry. Showers during the evening. 
July 13.—At 2.55 p. m. a breeze sprang up, accompanied hy a heavy shower; rain ceased at 3.40 p. m.; quantity, 
in.; sky partially covered with clouds. 6 p. m., sultry. 10 p. m., evening clear and calm. 
July 14.—6 a. m., clear and calm. 8 a. m., ditto. 9 a. m., ditto. 8 p. m., clear and calm. 9 p. m., ditto. 
