pie 4 
of falt whofe fpecific gravity. was 1,1466. The quantity 
neceffary for faturation was 254 grs. the lofs of air amounted 
to 34. The fpecific gravity of the faturate folution in the 
temperature of 56° was 1,076, the whole weight 1098 grs. 
Tue fpecific gravity of a folution of 100 grs. of falt of fylvius 
in 720 of water in temperature 56° was alfo 1,076, hence the 
‘ Me X ; I 
proportion of falt in both folutions was equal, viz. Sa of the 
whole. Now 7098 115,902, of this quantity 86 were pure 
alkali, therefore the remainder, confifling of 47,902 grs. were 
acid or acid and water. But as this falt when apparently dry 
lofes at moft 3 per cent. in a red heat, I confider it to contain 
no water of cryftallization, and confequently judge thofe 47,902 
ers. to be acid. Now 254 grs. of this fpirit of falt contain 
92,71 of ftandard. And of thefe it appears that only 47,902 
were taken up, therefore 44,908 are rejected as mere water, 
and if 92,71 lofe 44,908, it follows that roo grs. ftandard fhould 
lofe, on uniting to pure vegetable alkali, 48,4 grs. and con- 
fequently is nearly as dephlegmated as marine air. 
Hexce 48.4 grs. of this ftrong acid are equivalent to 100 
ers. of ftandard, or roo of this ftrong acid to 206 of ftandard, 
100 grs. therefore pure vegetable alkali take up 55,7 of this 
ftrongeft marine acid, which are equivalent to 115 nearly of 
ftandard, and afford 155,7 grs. of falt of fylvius. 
adly, 
—— 
