pe aed 
I wow return to the foluble part of the barilha, ‘which ne- 
ceflarily amounted only to 2857 grains, as 5760—290 352857- 
- In the firft place I obtained 4213 grains of pure cryftallized 
mineral alkali, but ,thefe_cryftals_are known to contain but } of 
real alkaline, fubftance, the remainder of their weight being fixed 
air and water of cryftallization, therefore one pound of barilha 
contains but 842 grains of pure real alkali. 
Besrpzs this I alfo obtained 127 grains’ of a mixture of 
mineral alkali and common-falt, which I could ‘not eafily feparate, 
and 346 grains of a mixture of vegetable and mineral alkali, with 
a {mall proportion of extractive matter, and fome digeftive falt, 
as I believe; this mafs conftantly attracted moifture. I weighed 
it hot and dry, but forgot to examine the portion ‘of fixed air it 
contained ; it could not be lefs nor much more than 28 per cent. 
and therefore this mafs contained about 250 grains of mere 
alkali. 
TueEse folutions, and particularly the laft portions, afforded 
alfo 125 grains of Glauber’s falt and 70 of common falt, but the 
Glauber’s falt at leaft did not exift in a cryftallized form in the 
bare and as 100 grains of it are reduced to 42 by expelling 
the’ water of cryftallization, no more than 53 grains of it can \ be 
pasa to have panes in the barilha. © re 
Turse fohitions alfo depoted 20 grains of eatihl 
Hewes iui dietis of, soe different seristedhesua| contained. in 
ong pops inset baritha ave, as, follows! yy, noi wid) vod a 
oe 
J 
C 2 Fixed 
