IN THE HALL OF THE ROYAL SOCIETY. 
569 
1832. 
Thermometers. 
Water- 
Barometer. 
Tempera- 
ture of 
Mercury. 
Mercurial 
Barometer. 
Water- 
Barometer 
reduced to 
Mercury. 
Difference 
Elasticity 
of Vapour. 
Difference. 
In. 
Out. 
O 
Inches. 
Inches. 
Inches. 
Inch. 
Inch. 
Inch. 
February 1 
48 
48 
390*22 
47 
29*523 
2 
50-5 
50 
386*22 
51 
29*218 
3 
50 
49-5 
389*46 
46 
29*459 
4 
50-5 
50 
393*41 
51 
29*797 
5 
52 
52 
395*35 
53*5 
29*983 
6 
53-5 
53 
393*10 
54*5 
29*816 
7 
52 
52 
394*16 
50 
29*888 
8 
49-5 
49 
399*63 
52 
30*301 
9 
51 
51 
400*04 
52 
30*364 
10 
50 
49-5 
402*41 
50 
30*542 
11 
50 
49-5 
400*21 
49 
30*350 
12 
48 
47-5 
397*94 
51*5 
30*154 
13 
48 
47-5 
397*18 
49 
30*073 
14 
47 
47 
396*80 
50*5 
30*054 
15 
46 
44-5 
397*37 
48 
30*060 
16 
43 
42-5 
395*17 
41*5 
29*867 
17 
45 
45 
393*02 
48 
29*708 
18 
46 
46 
398*35 
49 
30*165 
19 
47 
46-5 
400*02 
50 
30*307 
20 
46 
46-5 
400*11 
46 
30*325 
21 
46 
45-5 
399*43 
48 
30*263 
22 
44 
44-5 
400*42 
49 
30*324 
23 
44 
44 
400*05 
43 
30*380 
24 
43 
43 
398*89 
46 
30*168 
25 
42 
42 
397*21 
43 
30*019 
26 
43 
42-5 
399*22 
43*5 
30*213 
27 
46 
46 
397*72 
44 
30*112 
28 
44-5 
44 
398*80 
48 
30*104 
29 
44 
44 
398*91 
48 
30*193 
Means. . . . 
47*2 
47 
396*92 
48*3 
30*060 
29*133 
*927 
*364 
•563 
