c ^6 : 
1 822. 
Thermometer 
without. 
Thermometer 
within. 
Barometer.* 
Six’s Thermometer. 
Rain.t 
Greatest 
height. 
Least 
height. 
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 
5 ° 
32 
4**5 
58 
41 
5°>3 
30,17 
29,10 
30,107 
51 
31 
42,2 
0,215 
February 
53 
35 
45 , 6 
60 
49 
55,0 
30,69 
29,30 
30, 102 
54 
34 
45,5 
0,560 
March 
6 5 
3 6 
49,5 
6 3 
51 
56,7 
3 °, 36 
29,43 
3 °,° 3 ° 
66 
35 
49,5 
1,273 
April 
63 
37 
49,6 
63 
48 
5 6 >3 
30,40 
29,30 
29,921 
64 
35 
49,5 
1,620 
May 
74 
47 
S 9»4 
70 
54 
61,6 
30,46 
29,30 
29,959 
75 
45 
00 
00 
Go 
1,022 
June 
81 
54 
67,0 
74 
62 
67,0 
30,29 
29,65 
30,064 
84 
5 ° 
64,6 
1,212 
July 
75 
58 
66,1 
68 
60 
64,4 
30,18 
29,41 
2 9,775 
76 
53 
64,9 
2,788 
August 
78 
5 6 
64,8 
73 
59 
64, 7 
30,23 
29,47 
29,992 
80 
5 ° 
64,3 
0,975 
September 
70 
49 
VO 
00 
72 
55 
61,6 
30,21 
29,31 
29,941 
70 
45 
58,6 
0,702 
October 
6 S 
4 1 
55 >i 
6 5 
47 
5 9 >° 
3°, 1 5 
29,31 
29,663 
66 
4 * 
54,3 
3,053 
November 
61 
38 
50,6 
62 
54 
57,6 
30,27 
29,24 
29,748 
61 
38 
49,7 
3,607 
December 
54 
2 5 
38,1 
56 
39 
49,0 
3°,57 
29,04 
30,059 
54 
23 
53,0 
1,041 
Whole year 
53,8 
58,6 
29,863 
55,0 
1 8,068 
* The quicksilver in the bason of the barometer is 8 1 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. 
The mean variation of the Magnetic Needle will be given in Part II. 
