the Royal Society’s Inftncments . 377 
the tube will be of a different heat from that in the ball, it 
will be necefFary to apply a correction on that account to 
the heat lliewn by the thermometer; to facilitate which 
the following table is given, in which the upper hori- 
zontal line is the length of the column of quickfilver 
contained in that part of the tube which is not immerfed 
in the liquor expreffed in degrees ; the fir if perpendicular 
column is the fuppofed difference of heat of the quick- 
filver in that part of the tube and in the ball; and the 
correfponding numbers in the table fhew how much 
higher or lower the thermometer Hand's- than it ought to 
do. The foundation on which the table is computed is,, 
that quickfilver expands one 11500th part of its bulk 
by eacli degree of heat- 
Diff. 
of 
Heat 
Degrees not immerfed 
O 
in the liquors. 
5 G 
100 
15° 
200 
230 
300 
35 ° 
400 
450 
500 
55 o 
600 
650 
7 °o] 75 o 
5 ° 
,2 
A 
, 7 
>9 
1, 1 
D 3 
D 5 
D 7 
2 
2,2 
2,4 
2,6 
2,8 
3 , x 
3,3 
100 
4 , 
■>9 
»>3 
2,2 
2,6 
3 ,° 
30 
3,9 
4,4 
4,8 
50 
5’7 
6,1 
6,6 
150 
7 , 
x ,5 
2,0 
2,6 
3,3 
3,8 
4,6 
i, 2 
5,9 
6,5 
70 
7,9 
8,4 
90 
9,8 
200 
9 > 
1,8- 
2,6 
3.5 
4,4 
5 , x 
6,1 
7 ,o 
CO 
8,7 
9,6 
10 
1 1 
X 2 
13 
250 
2,2. 
30 
4,4 
5>5 
6,4 
7,6 
8,7 
9,8 
I X 
12 
13 
14 
x 5 
16 
300 
D 3 
2,6 
3.8 
5 ’ 1 
6 ,4 
7,7 
9 > 1 
10 
12 
13 
x 4 
16 
x 7 
18 
20 
350 
hS 
3 »o 
4,6 
6,1 
7,6 
9 ,i 
1 1 
1 2 
14 
15 
x 7 
18 
20 
21 
23 
400 
*»7 
3>5 
5»2 
7, a 
ts 
CO 
10 
12 
H 
16 
17 
x 9 
21 
23 
24- 
26 
450 
2 
3>9 
5>9 
7,8 
9,8 
12 
H 
16 
18 
20 
22 
24 
25 
27 
29 
50,0 
2,2 
4,4 
6,5 
8,7 
2 X 
*3 
** 
*7 
20 
22 
24 
26 
28 
3 1 
33 
55 ° 
2,4 
4,8 
7> 2 
9,6 
12 
H 
17 
19 
22 
24 
29 
31 1 
34 
36 
But as the generality of obfervers will be apt to 
negleCt this correction, it would be proper to form 
two* 
