t 66 ] 
VI. A 'Table of the mean Heat cf every Month for Ten Tears in 
London, from 1763 to 1772 inclujively . By William 
Heberden, M. D. F. R. S. and A.S. 
Read January 3 1 , 1788. 
« 
At 8 A.M. 
At 2 P.M. 
Mean. 
Night. 
I 2 
Tanuary 
0 
0 r 
05 
0 
39 
0 
37 
34-7 
IO 
February 
3 » 
43 
40*5 
36.6 
9 
March 
39 
45 , 
42 
37* 1 
/ 
April 
44 
5 2 
48 
41 3 
5 
May 
5 1 
59 
55 
46.4 
0 
0 
June 
57 
6.5 
61 
5 2 *4 
2 
July 
59 
68 
6 3-5 
55 - 6 
I 
Auguft 
60 
08 
64 
55 * 1 
4 
September 
55 
63 
59 
5 1 -7 
6 
October 
4 » 
55 
5*-5 
45-5 
8 
November 
43 
48 
45-5 
40 
1 1 
December 
59 
42 
40.5 
37-3 
EXPLANATION OF THE TABLE. 
The firft column of figures denotes the order of the months 
according to their degrees of heat, beginning with Auguft, in 
which the heat is greateft. 
The fecond, and third, are the heats marked at the hour ex- 
p refled at the top of each column, and the fourth is the mean 
between thefe two. 
The laft column is the mean of the greateft cold at night, 
obferved in Marlborough-ftreet for twenty years, by the late 
Right Honourable Lord Charles Cavendish. 
