126 On Specific Gravity: 
In order to. avoid circumlocution, I shall, to the instrument. 
here represented, give the name of adie eons ; from. 
Supposing two such instruments ‘t eB filled, to the extent 
of the graduation, one with pure water, the other w ith any- 
spirituous liquid, lighter than water, whose gravity is to be 
touads let 1000 parts of the liquid be excluded into one scale 
of a beam, and then exclude into.the other scale as much wa-. 
ter as will ll balance it. Inspecting the graduation of the Chy- 
, from which the water has been expelled, the numbers 
observed, will be the answer sought. For, supposing 1000. 
measures of alcohol were placed in.one scale, if 800 measures 
. of water  paaeerbalante! it, the alcohol must be to the water, 
in pees as 800 to 1000 ; since it is self-evident, that when 
any two masses are made .equal in weight, their gravities 
must be. inversely as their bulks. 
To ascertain the specific gravity oh a Solid, by the via 
For this purpose, the = ed gravity is in soa 
shebule ‘be suspended’ ithe: nénal way » beneath one of the 
scales of a balance, and its weight, in vjarts of water, at oe 
F. ascertained, by measuring from the Chyometer, into 
onpesee scale, as many parts as will balance the body. Be 
ing Chae neler mires ahs. wits doth come 
duly pla- 
| eee 4 
ced u under it 5. . the number of parts of water, c t 
iy to cause i to be menged in ths aid, willbe the weight of 
a quantity of water, equivalent: in bulk to the body... Of 
dividing, by the number thus observed, the weight of 
body, in parts of water as previously found, the quotient 
ee “ the specific gravity. 
ss ought to be easily understood, since it differs 
‘at evo ne only, in using measures of water, in- 
water, for each process. 
To ascertain the specific gravity wig of. a , Coerosive Fluid, by the 
The process, described in oe preceding page, is o 
plicable, where the fluid is not of ene Bas = i ay 
Fa 
