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EXPERIMENTS. 



Exp. I. Volatile Alcalt. Into a fmall glafs 

 of cyder-wine were dropped fifteen drops of volatile 

 fpirit of fal ammoniac. — A flight precipitation en- 

 fued, the liquor became darker coloured, and on 

 ftanding, a thick cloud of a greenijh caft fettled on 

 the furface. The volatile alcali, whether mild or 

 caujlicy exhibited the/ame appearance. 



Exp. 2. Phlogisticated Alcali. The like 

 proportion of the phlogifticated alcali gave a more 

 vifible green tinge to the liquor, and on ftanding 

 produced a variegated //»2 on the furface, refledling 

 t})e prifmatic colours, fimilar to what is obferved in 

 chalybeate waters expofed to the air. At the hi- 

 torn were fonqe particles of a brown caft, 



Exp. j. Solution of Orpiment. This liquor 

 which is prepared by chemifts under the term of 

 Liquor vini probatorius^ or wine iejl, when dropped 

 into the cyder-wine, occafioned a flight doudinefsy 

 followed by a precipitation of brownijh particles* 



Exp. 4. A frelh portion of cyder-wine being 

 .diluted with three times its quantity of fair water, 

 was afterwards tried with the above-mentioned li- 

 quors, and then exhibited the different phoenomena 

 more diftinclly. 



Exp. 5, 



