C 26 J 
/: 
1814. 
Thermometer 
without. 
Thermometer 
within. 
Barometer.* 
Hygrometer. 
Rain.t 
Greatest 
height, j 
Least 1 
height. I 
Mean 
height. 
Greatest 
height. 
Least 
height 
Mean 
height. 
Greatest 
height. 
Least 
height. 
Mean 
height. 
Greatest 
height. 
Least 
height. 
Mean 
height. 
Deg. 
Deg. 
Deg. 
Deg. 
Deg. 
Deg. 
Inches. 
Inches. 
Inches. 
Deg. 
Deg. 
Deg. 
Inches. 
January 
40 
*7 
28,8 
47 
29 
38,5 
30,20 
28,32 
29,53 
80 
62 
73-2 
1,122 
February 
48 
23 
35*6 
55 
41 
46,7 
30,46 
29,38 
30,06 
78 
6 l 
69,6 
0,528 
March 
54 
29 
37-5 
53 
39 
45-9 
3°-39 
28,80 
29-73 
79 
6 3 
71-5 
0,718 
April 
64 
43 
50,8 
67 
5 1 
570 
30,26 
29,32 
29,84 
77 
45 
64,1 
1,296 
,May 
63 
43 
51,8 
66 
53 
57-3 
30,46 
29,41 
29,96 
77 
51 
62,2 
1 -779 
June 
73 
47 
56s 5 
68 
54 
59 - 1 
3°-33 
29-74 
30,00 
79 
5 1 
65,9 
1-558 
July 
79 
54 
64.0 
81 
60 
66,4 
3°-33 
29,67 
29,80 
75 
55 
6 3-3 
0,676 
August 
72 
S> 
61,6 
76 
60 
65,5 
3 °- 3 ° 
29,55 
29,96 
77 
52 
6 3-4 
2,000 
September 
65 
44 
37»5 
72 
57 
62,7 
30-37 
29-55 
30,05 
78 
55 
65,1 
0,965 
October 
60 
34 
49’5 
61 
5 ° 
55-3 
30,22 
29,13 
29,78 
76 
57 
65,6 
1 ,6 1 1 
November 
53 
28 
4 z -7 
58 
44 
5°-9 
30-3 1 
29,17 
29-73 
78 
62 
71-1 
1,864 
December 
55 
32 
42,6 
58 
40 
51,0 
30,11 
29,20 
29-65 
80 
6 5 
72,7 
2,250 
Whole year 
48,2 
54-7 
29,84 
67-3 
16,367 
* The quicksilver in the bason of the barometer, is 81 feet above the level of low water 
spring tides at Somerset-house. 
f The Society’s Rain Gage is 114 feet above the same level, and 75 feet 6 inches above 
the surrounding ground. 
By another Rain Gage placed at a few feet distant from the former and 11 feet 6 inches 
lower, the quantity of rain this year appears to have been 20,723 inches. 
Mean Variation of the Magnetic Needle, June, 1814, 24 0 16' 42" West. 
July, 24 17 54 
August 24 21 10 
September 24 20 33 
