C 26 1 
Thermometer 
without. 
Thermometer 
within. 
Baronieter.* 
Rain.f 
j 1816. 
Greatest 
height. 
| Least 
j 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 
48 
25 
38,8 
54 
4 1 - 
48, 2 
3 -o ,45 
28,92: 
29-67; 
'0,733 
February 
55 
J 9 
39 -° 
59 
30 
49-4 
30,38 
28,88- 
30,92 
1,625 
March 
53 
3 2 
41,8 
59 
47 
Si,8 
30,34 
29,02 
29,78 
0 - 425 : 
April 
6 4 
35 
47,3 
67 
45 
54’ 3 
30,1 1 
2.9,07 
29,69 
1,020 
May 
67 
4 i 
53-3 
6 5 
5 1 
57-9 
30,15 
2 9 - 1 8 
29,81 
0,902 
June 
70 
48 
58,2 
69 
53 
60,7 
JO 
O 
29,24 
29,89 
0 - 93 1 
July 
69 
5 2 
58,8. 
70 
56 
61,6 
29,92 
2 9,33 
29,65 
2,7,89 , 
August 
69 
53 
61,0 
69 
5.0 
61,1 
30,24 
2 9,43 
29,90 
1-176 
September 
69 
53 
61,3 
69 
56 
61,6 
30,21 
z 9-73 
29,96 
0,824 
October 
69 
37 
52,6 
64 
50 
5 6,6 
30,20 
2 9’ 1 7 
29-79 
0,888 
November 
53 
26 
41,6 
59 
43 
51,8 
30,63 
29,83 
29,65 
2,1.20 
December 
5 1 
2 5 
39-5 
54 
40 
48,9 
30,64 
29,03 
29,74 
: 1,741 
Whole year 
49>4 
55-3 
29,87 
15,174 
* The quicksilver in the. bason of the barometer, is 8x feet above the level 
of low water spring tides at Somer ( set-house. 
f The Society’s Rain Gage is 1.14 feet above the same level, and 75 feet 
6 inches above the surrounding ground. 
Mean variation of the magnetic needle, June 1816, 24 0 17' 54" West. 
