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EXPER. xix. 



IF we duly refleft upon the knowq 

 procefs that Chymifts are wont 

 to employ in making Mercnrius duU 

 cis % we (hall find it very favourable 

 to out Hypothefis. For though we 

 have already (hewn in the V. Expe- 

 riment , and 'tis generally confeft* 

 that common Sublimate made of 

 Mercury is a highly corrqfive body 5> 

 yet 5 if it be well ground with 

 near an equal weight of Quickfil- 

 yer 9 and be a few times fublimed* 

 (to mix them the more exadly) it 

 will become fomild, that 'twill not 

 fo much as tafte (harp upon the 

 tongue 5 fo that Chymifts are wont 

 to call it Mercnrius dulcis : And yet 

 this Qulcification feems to be per- 

 formed in a Mechanical way. For 

 moft part of the Salts 3 that made 

 the Sublimate To Corrofive, abide in 

 the Mercurius dulcis 5 but by being 

 compounded with more Quickfilver, 



they 



