in the Pyrites. 16$ 



What our author means by the volatile and at* 

 moft infipid fait, I cannot conceive •, a/ volatile, 

 namely, a fpirit of vitriol, becoming fulphureous 

 by means of a fatty addition, I well know, and 

 yet lo infipid is it, as to be corrofive. I have al- 

 fo a dry volatile acid fait, but powerfully corrofive 

 with all manner of lixivious falts. Would we ab- 

 ftracr. a fpirit of vitriol over lixivious falts, and 

 call what goes over (which is a pure phlegm, kt 

 free from its acid fait) an edulcorated fpirit of 

 vitriol, as fome have fancied to themfelves, we 

 might then indeed procure fomething infipid, but 

 fomething, at the fame time, feparated, the acid of 

 which was not edulcorated, but left behind in the 

 alcali ; and thus, neither a fait, much lefs a vola- 

 tile fait, but a pure plain water. 



* This then is one of the principles of the fuU 



1 pbur, namely, its fait, loofened from its other 



1 principles, but mingled a-new with the univer- 



' fal receptacle of acid falts, namely, the moifture* 



1 of the air: the fatty, inflammable, as well as its 



c other earths, are, by evaporation, loft in the 



' air.' 



c By the following procefs I have feparated the 

 c parts whereof common fulphur confifts, fo that 

 1 each may be exhibited apart. Put into a body, 

 c or cucurbit of two meafures, four ounces of 

 ' flowers of fulphur (or fine- rubbed fulphur) pour 

 4 thereon a pound of oil of fennel, or turpentine, 

 1 let them ftand together for eight days in ftrong 

 1 digeltion, and the oil will diflblve the fulphur \ 

 1 and acquire a highly red colour ; let them cool, 

 * and you will find the fulphur, to the quantity of 

 J about three ounces, fhot at the bottom into yei- 



M 2 « low 



