560 PROFESSOR DANIELL ON THE WATER-BAROMETER ERECTED 
1S31 . 
Thermometers. 
Water- 
Barometer. 
Tempera- 
ture of 
Mercury. 
Mercurial 
3arometer. 
Water- 
Barometer j 
•educed to 
Mercury. 
Difference. 
Elasticity 
jf Vapour. 
Difference. 
In. 
Out. 
Inches. 
o 
Inches. 
Inches. 
Inch. 
Inch. 
Inch. 
May 1 
55 
55 
390-86 
54 
29-400 
- 
2 
56 
56 
391*74 
52 
29-479 
3 
55-5 
55 
393-00 
53 
29-568 
- 
4 
56 
56 
389-84 
57 
29-587 
5 
54 
54 
392-22 
48 
29-484 
6 
51 
51 
395-38 
52 
29-685 
7 
48-5 
49 
399-25 
51 
29-974 
8 
48-5 
49 
402-21 
52 
30-203 
9 
50 
50 
433-55 
52 
30-285 
10 
52 
52 
401-01 
54 
30-163 
11 
51 
51 
400-00 
53 
30-136 
12 
54 
54 
399-95 
55 
30-100 
13 
55 
55 
397-28 
52 
29-919 
14 
54 
54 
399-01 
48 
30-026 
15 
51-5 
52 
398-93 
47 
30-001 
16 
54 
54 
399-43 
50 
30-064 
17 
56 
56 
400-05 
55 
30-153 
18 
58 
58 
397-53 
57 
29-994 
19 
58-5 
58 
394-23 
57 
29-753 
20 
61 
61 
393-49 
61 
29-639 
21 
60-5 
60 
394-90 
59 
29-827 
22 
59"5 
60 
396-66 
58 
29-950 
23 
59 
59 
395-19 
57 
29-846 
. 24 
61 
61 
393-88 
60 
29-785 
62 
62 
393-77 
61 
29-771 
26 
61 
61 
394-35 
58 
29-802 
27 
59 
59 
393-66 
55 
29-736 
28 
58-5 
59 
395-44 
57 
29-841 
29 
58 
Cn 
00 
dt 
396-31 
56 
29-913 
30 
57 
1 ^ 
395-69 
55 
29-838 
31 
1 57 
57 
396-99 
55 
29-930 
Means. . . 
1 55-9 
55-9 
397-28 
54*5 
29-866 
29-161 
o 
Cn 
•492 
•213 
