C ^ 3 
1791. 
Thermometer without.- 
Thermometer within. 
Barometer. 
Rain.* 
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. 
Inches. 
January 
53 
3 1 
42,1 
58 
46 
52,9 
30,58 
28,18 
29,56 
!’957 
February 
5 M 
3 ° 
41,1 
57 
48,5 
5 2 ’5 
30,48 
29,16 
29,94 
0,873 
March 
55 
3 1 »5 
44’ 3 
61,5 
48 
55 ’ 6 
30,67 
28,90 
30,20 
0,716 
April 
64 
4 i 
5 *’9 
64 
55>5 
60,0 
30,11 
29,08 
29,77 
1,460 
May 
67,5 
39 
53 >i 
61,5 
55 
58,1 
3°’37 
2 9’53 
30,02 
o ,794 
June 
80 
47 
61,3 
7°’5 
57 
63,0 
30,22 
2 9’39 
2 9>93 
0,332 
July 
7 8 , 5 
3 2 >5 
62,6 
68 
61 
64,2 
30,24 
29,44 
29,89 
2,194 
August 
78 , 5 
5 ° 
64,9 
72 
62 
67,1 
30,52 
29,65 
30,06 
0,824 
September 
77 
43 
59’5 
7'>5 
58,5 
62,5 
30,33 
29,52 
30,09 
OO 
^h 
d 
October 
62,5 
34 
48,9 
61,5 
5 2 ’5 
57’8 
30,46 
28,89 
29,69 
2,027 
November 
52, s 
2 5 
43’6 
59»5 
4 8 
54>5 
30,28 
28,76 
29,68 
2,527 
December 
48 
21 
3 6 ’7 
5 6 
45 
50,0 
3 °’ 3 8 
28,90 
29,64 
1,124 
Whole year 
50,8 
58,2 
29,87 
i 5 ’ 3 10 
* On consulting other registers kept in and near London, it appears that the quantity of rainj 
collected in the rain-gage of the Royal Society is remarkably deficient. Experiments are now] 
making to determine the cause of this deficiency, and, if possible, its amount. In the mean time 
it was thought right to apprise the public of the fact, that no reliance may be placed on that pari 
of the Meteorological Journal, till farther information has been obtained. 
