the Point of Mercurial Congelation. *343 
Experiment V. made February 22, 1781. 
1 
Time per 
Watch. 
Thermom. 
below 0 . 
Appara- 
tus. 
Spirit 
Thermom. 
Remarks and Occurrences. 
h. , 
// 
A. 
G. 
C. 
8 4 
0 
7 8 
40 
2 9i 
8 9 
0 
89 
40 
29 
Making the freezing mixture. 
8 1 1 
0 
— 
— 
— 
Put the inftruments into the mixture. 
8 1 1 
10 
70 
40 
011 
0 1 2 
8 1 1 
3° 
60 
39l 
32 
8 1 1 
50 
54 
39i 
32 
8 12 
3° 
— 
— 
— 
Added more fr.ow. 
B 13 
0 
50 
4i 
33i 
8 13 
3° 
5i 
42 
34 
8 14 
0 
5i 
72 
34 
8 14 
T 5 
5i 
78 
-34 
8 14 
32 
5i 
78 
34 
8 15 
0 
— 
— 
— 
Added more fnow. 
8 15 
20 
52 
7 8 
35 
% 
8 15 
5° 
— 
— 
— - 
Added more fnow. 
8 16 
10 
52 
79 
35 
The quickfilver in the cylinder fluid. 
8 17 
0 
52 
79 
35 
8 20 
0 
52 
79 
35 
8 ^5 
0 
52 
79 
35 
Made a frefh mixture. 
8 30 
0 
52 
79 
35 
f Removed the inftruments into the new 
l mixture. 
8 30 
45 
52 
79 
35 
t 31 
3° 
52 
79 
35 
The quickfilver in the cylinder {till fluid. 
8 32 
3° 
52 
79 
35 
64 
Put in mercurial thermometer (B). 
8 32 
50 
52 
79 
35 
80 
8 33 
20 
52 
79 
35 
90 
8 34 
0 
52 
79 
35 
90 
8 35 
0 
52 
79 
35 
9 1 
- 
8 37 
0 
52 
79 
35 
9 1 
The quickfilver in the cylinder folid frozen. 
11 31 
0 
52 
79 
35 
9 1 I 
Took out all the inftruments. 
Remarks on the fifth experiment . 
I had not intended to make any more experiments of this kind, 
thinking thofe already made had fully determined the freez- 
Vol. LXXIIL *Z z in g 
