PHYSICAL AND LITERARY. 3% 



coarfe fugar. I did not think it for my 

 prefent purpofe to bellow more time and 

 pains to bring this fak to a greater degree 

 -of whitenefs and drynefs ; but I put it in- 

 to a retort, and poured upon it one ounce 

 and an half of oil of vitriol, diluted with 

 three ounces of water : In difiillation, there 

 came over near feven ounces of a thin 

 limped acid liquor, which, in tafte, refem» 

 bled dillilled vinegar^ but was more 

 (Irong. The faline mals left in the retort 

 being dilTolved in warm water, the folu- 

 tion filtred and evaporated, the chryftals 

 could not be diflinguilhed from the or- 

 dinary tartarus vitriolatus in £hape, colour, 

 or talle. 



To fatisfy myfelf, that a volatile aka- 

 line fait or fpirit may^ likewife be difen- 

 gaged from an acid to which it has been 

 united, and reftored to its former ftrength 

 and qualities, I made the following expe- 

 riment. I took eight ounces of that com- 

 pound faline liquor, which is defcribed 

 in our College Difpenfarory under the ti- 

 tle of Spir'mu Min.kreri 5 it is mad€ by 

 pouring diftilled vinegar upon volatile 



fal- 



