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PHYSICAL ann LITERARY, 323 
fogar. I did not.think it for my. prefent 
-purpofe to beftow more time and _pains.to 
bring this falt. to a greater, degree of white- 
- nefs and drynefs; but J put it into a retort, 
and poured upon it one. ounce and an half 
of oil of vitriol, diluted with three ounces of 
water: in diftillation there came over near 
feven ounces of a thin, limpid acid liquor, 
which, in tafte, refembled diftilled vinegar, 
but was more ftrong. The faline mafs left 
in the retort being diffolved in warm. water, 
the folution, filtred and evaporated, the chry- 
ftals could not be diftinguifhed from, the or- 
dinary ¢artarus vitriolatus in fhape, colour, 
or tafte. 
To fatisfy myfelf, that a volatile alcaline 
falt or {pirit may likewife be difengaged from 
an acid to which it has been united, and re- 
ftored to its former ftrength and qualities, I 
made the following experiment. Itook eight 
ounces of that compound faline liquor, which 
is defcribed in our College difpenfatory un- 
der the title of Spiritus Mindereri; it is made 
_ by pouring diftilled vinegar upon volatile 
fal-ammoniac, until the falt is diffolved and 
 fatiated by the acid. This neutral faline li- 
guor, however, will not chryftallize or co- 
: alefce 
