and attractive Powers of various Jaime Su fiances. 1 3 
The fpecific gravity of the ftrongeft 
fpirit of fait, made in the ufual way, is, 
according to Mr. baume, 1,187, and ac- 
cording to Mr. BERGMAN, 1,190; blit 
we read in the Paris Memoirs for the 
year 1700, p. 19 1. that Mr. homberg 
palled a fpirit whofe fpecific gravity was 
1 ,300 ; and that made by Dr. priestley 
(fee vol. III. p. 275.) muft have been 
about 1,500. 
Hence we fee, that fpirit of fait, 
whofe fpecific gravity is 1,261 or lefs, 
has little or no attra&ion with water, and 
therefore attrafts none from air, and on 
that account does not heat a thermometer 
whofe ball is dipped in it as fpirit of vi- 
triol and fpiiit of nitre do, as has lately 
been obferved by the Friendly Society of 
Berlin. 
This table is not exaftly accurate, as 
I had not in this firft experiment found 
the point of faturation as nicely as was, 
requifite. However, I have not corre&ed 
it, as the error is but fmall, and the 
proportion may at any time be found by 
calculation ; at leaf: when the fpecific 
gravity of this fpirit does not exceed 
1,253. Whether the mathematical fpecific gravity and that by 
obfervation differ in the higher degrees of fpecific gravity, I have 
not examined ; but the table is formed on the fuppoficion that 
they do not. 
Marine 
Water. 
Specific 
acid. 
Gravity. 
Parts, 
Parts. 
5 ° 
1 >497 
60 
I ) 43 1 
70 
1,381 
80 
i, 34 i 
90 
1,308 
100 
1,282 
1 10 
i ,259 
120 
1,246 
130 
1,223 
140 
1,209 
150 
1,196 
160 
1,185 
170 
i,i 75 
180 
1,166 
190 
1,158 
200 
1,151 
210 
1,144 
220 
1,13 s 
48,7 
230 
i > ! 32 
240 
1,127 
250 
1,122 
260 
I, I l8 
270 
1,114 
280 
I, I IO 
290 
1,106 
3 00 
1,103 
3 IQ 
1,100 
320 
i ,°97 
33 ° 
1,09 1 
340 
1,089 
350 
1,086 
360 
1,084 
370 
1,082 
380 
1,080 
390 
1,078 
400 
1,076 
410 
1,074 
Common 
