the Point sf Congelation. 
Muriatic acid. 
Proportion of 
Freezing 
Freezing 
water to acid. 
point by 
point by 
experiment. 
calculation. 
10 : i 
0 
25 
O 
2 5 
5>* ♦ 1 
1 8 ♦ 
1 8 1 
3>°5 : 1 ' 
9? 
9* 
This table is confhu&ed as the foregoing ; and the fpecific 
gravity of the marine acid was 1,163. 
Salt of tartar, fuch as is ufually fold in the (hops, was the 
vegetable alkali I employed. It did not readily deliquefce, 
and confequently was not very cauftic : the cold it produced 
with fnow was - 1 2 
Salt of tartar* 
Proportion of 
Freezing 
Freezing 
water to alkali. 
point by 
point by 
experiment. 
calculation. 
10 : 1 
O 
27I 
26 >| 
7>5 •• 1 
2 5 * 
24 f- 
5 : 1 
22% 
214 
3 : 1 
1 5 
H 
2,5 : 1 
ill 
iof 
2 : 1 
5 
5 
Here the greateft difference between the calculation and ex- 
periment is iomething more than if degree, in finking the 
freezing point from 22°| to 5 0 ; but in the higher freezing 
points of the table it is lefs, as well as in the lower. Perhaps 
Vol. LXXVIII. T t this 
