C •* D 
18] I. 
Thermometer 
without. 
Thermometer 
within. 
Barometer. 
* 
Hygrometer. 
Greatest 
height. 
Least 
height. 
Mean 
height. 
Greatest 
height. 
Least J 
height 
Mean 
height. 
Greatest 
height. 
Least 
height. 
Mdan 
height. 
Greatest 
height. 
Least 
height. 
Mdan 
height. 
Deg , 
Deg. 
Deg. 
Deg. 
Deg. 
Deg. 
Inches. 
Inches. 
Inches. 
Deg. 
Deg. 
Deg. 
January 
45 
24 
34-9 
5 1 
3 6 
44’9 
30-5 1 
29,09 
29,88 
78 
58 ' 
68,4 
February 
5 ° 
32 
4 Z >5 
55 
46 
5*-4 
30,22 
28,94 
2 9>53 
77 
60 1 
VD 
OO 
March 
57 
39 
4 6 -7 
64 
46 
55-3 
30,56 
29,42 
30,10 
79 
5 ° 
6 5-3 
April 
67 
37 
52,1 
63 
51 
57-5 
3°-39 
29, 1 2 
29-74 
76 
50 
63>3 
May 
72 
48 
6o,I 
69 
57 
61,8 
30,04 
29,41 
29,76 
75 
51 
6 3>4 
June 
7 i 
55 
62,2 
68 
60 
6 3-3 
30,28 
29,11 
29,86 
76 
5 1 
59-7 
July 
73 
56 
64,9 
72 
61 
68,0 
3°- 2 3 
29,67 
29,99 
75 
53 
62,4 
August 
71 
55 
62,5 
63 
59 
64,1 
3°-33 
29,46 
29,92 
70 
53 
61,2 
September 
72 
45 
61,0 
73 
55 
64,9 
3 °- 3 1 
29,26 
29,99 
72 
5 1 
62,7 
October 
6 5 
45 
57,6 
67 
52 
60,4 
30,28 
28,71 
29,67 
74 
61 
68,5 
November 
61 
32 
47-3 
60 
49 
5 D 2 
30,49 
29,36 
29,99 
76 
62 
69,1 
December 
53 
26 
40,2 
5 6 
43 
5 M 
30,25 
29,00 
29,59 
77 
62 
70,0 
Whole year 
52,7 
CO 
ID 
29,83 
65,2 
* The quicksilver in the bason of the barometer, is 8 s feet above the level of low 
water spring tides at Somerset-house. 
Rain from 25th May, i8ss, to 31st December, 1 8 1 1 , 10,645 Inches. 
Magnetic Needle, September, sSn .5 Variation 24° 14' 2'^ West. 
