of the Natives of Ruffia. 629 
boiling water in the fame manner as before, until i'c be- 
comes as thin as fmali-beer. The tub is then placed in 
a cool fituation for fome hours, the cover being kept half 
open with a flick; then the liquor is palled through a 
fieve into a calk, and two bafons full of old quafs, or the 
fubftitutes mentioned in the laft receipt, are added, and 
the veflel placed in a cellar or cool fituation for live or 
fix days, until it acquires the fub-acid tafte, when it is fit 
for bottling. 
Here feems to be an elegant improvement of Dr. mac- 
bride’s infufion of malt, for the acidulous tafte makes it 
highly palatable and refrefhing, and probably there may 
be a virtue in this fpecies of acidity, which is perhaps the 
only thing that the fweet infufion wants, to give it all 
the antifcorbutic qualities of your four krout, &c. as it 
alfo abounds in the antifeptic fluid fixed air which re- 
commends the other for medical purpofes, and particu- 
larly as an antifcorbutic; at the fame time that the fer- 
mentation is permitted to run on until it acquires the 
acid tafte which I obferve every one of the efficacious 
vegetable preparations ufed in the North is pofleffed of, 
and what nearly feems to be the fecret alone by which 
thefe people preferve them for a length of time, and put 
them upon an equality with frefh vegetables, as one 
would be led to think by their falutary effects. 
4 
The 
