1819. 
Thermometer 
without. 
Thermometer 
within. 
Barometer. 
Leslie’s II y 
meter. 
gro- 
Six’s Thermometer. 
Rain.t 
Greatest 
height. 
Least 
I li ight. 
Mean 
height. 
Greatest. 
height. 
Least 
height 
Mean 
height. 
Greatest 
1 height. 
Least 
height. 
Mean 
'height. 
Greatest 
height. 
Least 
Ileiglit. 
Mean 
height. 
% * 
« fcX 
{j-s 
0 — 
3 .rP 
u 
Mean 
height. 
Deg 
Deg. 
Deg. 
Deg. 
Deg. 
Deg. 
Inches. 
Inches. 
Inches. 
Deg. 
Deg. 
Deg. 
Deg. 
Deg. 
Deg. 
Inches. 
January 
5 2 
3 2 
+ 1,8 
60 
4 1 
51,8 
3°*49 
29,22 
29,78 
28 
2 5 
I 1,0 
5 ° 
32 
42,5 
0,789 
February 
5 1 
3 ° 
4 D 9 
59 
47 
52,2 
30,04 
29,02 
29,65 
34 
3 
13,0 
58 
3 ° 
42,5 
1,638 
J March 
57 
3 6 
46,0 
63 
46 
54 *° 
3 °> 3 ° 
29,21 
29,87 
5 ° 
4 
« 7 D 
60 
36 
46,3 
1,010 
April 
6 5 
39 
50,7 
69 
52 
59 * 1 
30,22 
29,1 1 
29,78 
5 2 
3 
19,8 
67 
00 
fc#- 1 
5 I »5 
1,694 
May 
68 
48 
57*3 
6 5 
52 
59’7 
30,21 
29,10 
2 9>73 
56 
4 
21,6 
7 1 
40 
57,5 
1,400 
June 
70 
5 i 
59*7 
70 
56 
6 1,8 
OO 
O 
rsj 
OO 
29,58 
29,90 
39 
3 
16,9 
72 
4 ^ 
59*5 
GO17 
July 
75 
56 
64,6 
74 
60 
66,4 
30,21 
29,32 
VO 
OO 
OO 
61 
8 
24,2 
81 
5°2 
64,9 
0,750 
August 
75 
55 
67,0 
76 
6 3 
68,2 
3 °* 3 » 
29,20 
29,99 
73 
5 
27,1 
80 
52 
67,2 
0,250 
September 
7 i 
5 ° 
60,7 
72 
56 
63>3 
3°*45 
29,47 
29,94 
5 6 
2 
2 3>4 
73 
47 
60,7 
1,320 
October 
70 
3 + 
5 1 >5 
70 
46 
5 7*3 
3 °* 3 « 
29,23 
29,79 
60 
0 
H *7 
70 
32 
58,9 
1,069 
November 
56 
29 
4 Z *9 
64 
46 
52,9 
30,08 
29,1 I 
29,71 
25 
0 
8,6 
60 
21 
42,7 
0,917 
December 
55 
18 
''t’ 
OO 
60 
42 
52,2 
30,17 
29,24 
29,71 
*7 
0 
6,0 
54 
1 3 
38.9 
i * 8 73 
Whole year 
51,9 
58,2 
29,81 
lb, 8 
5 2 »7 
i 3>727 
* The quicksilver in the bason of the barometer, is 8 x 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. 
