the Point of Mercurial Congelation. *3 1 7 
Experiment I. made December 15, i^Bf. 
Time per 
Watch. 
Thermom. 
below 0. 
Appara- 
tus. 
Spirit 
Thermom. 
Remarks and Occurrences. 
h * , n 
9 55 0 
448 
40 
— 
Made a fecond freezing mixture. 
9 5 6 J 5 
448 
40 
— 
Removed the inhruments into the fecond mixture. 
9 5 ^> 4 ° 
448 
40 
— 
9 57 0 
448 
40 
— 
9 58 0 
448 
40 
— 
9 58 40 
uH 
40 
— 
9 59 0 
448 i 
40 
— 
10 0 0 
4481 
40 
— 
10 0 40 
4481 
40 
— 
Added more fpirit of nitre to the freezing mixture. 
►— 1 
0 
S 3 
O 
448I 
40 
— 
f Took the apparatus out of the freezing mixture, 
10 3 35 
4481 
40 
l found it frozen, and immediately re-placed it. 
10 4 14 
448-I 
42 
— 
10 5 0 
448 
42 
— 
0 
►-< 
0 
448 
4 i 
— 
1090 
448 
40 
— 
1 0 9 40 
448 
40 
— 
rTook the apparatus out again, and endeavoured to 
withdraw the thermometer, but could not efteft 
10 1 1 0 
448 
40 
" 
it, the quickfilver in the cylinder being frozen ; 
. put the apparatus again into the mixture. 
10 11 34 
448 
40 
— 
10 12 5 
448 
40 
— 
10 12 20 
448 
40 
— 
10 13 28 
448 
40 
— 
10 15 0 
— 
— 
— 
Made a third freezing mixture. ( 
10 16 15 
444 
40 
— 
10 .16 30 
442 
40 
— 
10 17 10 
44 ° 
40 
— 
10 17 26 
438 
40 
— 
10 17 40 
■* — 
— 
— 
Removed the inftruments into the third mixture. 
10 18 13 
446 
40 
— 
0 
•3- 
co 
1-4 
0 
448 
40 
— 
IO 19 O 
448 
40 
— 
IO 20 0 
448 
40 
— 
Went away to warm myfelf. 
10 26 0 
448 
43 
— 
Returned. 
O 
10 
O 
+■ 
-T- 
CO 
43 
Experiment 
