[ 348 ] 
water will not diffolve of its weight of alum, bo- 
rax, vitriolated tartar, corrofive fublimate and a 
great many other falls ; however, as fuch a table can- 
not fail ol being ufeful in chemical, and perhaps 
medical refearches, it would be worth while to make 
it more general, either by dillol ving a lefs portion of 
fait, cr making ufe of a greater degree of heat. 
j 
Experiment XI. 
To th.fe tables I have fubjoined another of a 
different nature, wherein the fpecific gravities of 
water impregnated with different quantities of the 
fame fait from g. down to the 1024th part of the 
weight of the water, 'are determined. I cannot 
accufe myfelf of careleffnefs in making any of the 
experiments from which the table is formed ; but 
part of it being made in a room where the heat was 
about 55 0 , and the other in my laboratory, when it 
did not exceed 46°, a certain inaccuracy, though it 
will be a very fmall one and fcarce fenfible in the 
weight of the fmall body which I ufed, will attend 
it upon that account. The fait was fea fait of the 
hneft kind, and extremely dry j many of the experi- 
ments were repeated. 
■ 
A Table of the fpecific gravity of water impreg- 
nated with different quantities of fea fait. 
Thermometer between 46 and 55 0 . 
Water ,1,000 
Salt 4 1,206 
I 
4 - 
