C 5058 ) 
or elfe you will loofe ^ great deal of the Mercury;as happened, 
itfeecQS, to our Author, when his PriDce^ being impatient of 
delay, commanded the water to be poured out before 'twas 
time : For the Mercury, being by fo ftroog a fire rcfolv'd into 
AtomSjis to be coagulated again by Cold. 
^This Mercury of Antimony our Author glorieth in, as ha- 
ving prepared and handled it with his own hands, and feen ic 
with his own eyes, after the finiflitdifl:illation, rnnniog in the 
bottom of the veffel. Neither doth he care, if any do ftiH call 
it a Non- Entity 5 or if any unwary Laborants be unfuccefsfu] 
in the operation. It is fufficient to him^ that he hach nothing 
alledgedj but what he hath tryed himfelf^ and candidly de- 
fcribed. He willjeth fuch Operators to conGder, how many 
things there are to be obfervd before and in the operation, 
and even after itj if you will be certain thereof* Which he 
faith may plainly appear even by the Operation of the Tartar 
alone^ forafmuch as all Tartar is not equally good, and himfelf 
hath met with great diverfity of the fame: Befides which great 
care is to be had of the Fermentation it fclf of the Tartar $ for 
if it be not duly made, the Tartar will not be refol v*d per mm 
ma 5 nor will the Grapes be reprefented in that natural fliape 
they ought to bejnor will all the Saltj (which is the main thing) 
be volatilized* Further,if perhaps the fire be exceiEve during 
the Diftillation^ much of the Volatil Salt will be burnt up^ and 
it Will yield a ftrong. fmeUing Spirit. 
Having difpatch*t thisj the Author fubjoyns an accompt5he 
met with ^Oiong his Papers^ of another way of Operation of 
Grinding of Gold 3 which though he have not yet tryed, yet it 
feeming to him very likely to lucceed^he kruples not to coiii« 
municatealfo. TheiGftrument,tobeuled therein^he defcribes 
thus, 
Tab.T. ^ Mortar of very fne Steel, 
Fig.U' b^ J body [ervingjot a Peflle^ of the fame Metal^ which 
is to fit the Mortar^ as 'tis delineated in the Figure. 
C.Is a fmallfpace^ where is inter fed a golden Fl'ate^ half a 
Ducat thick^ 
^, The handle, by rvhich the Peflle is to be managed in 
the rvorl{ of Grindingywhich is to be continued for three 
weeks I at the endofr^hich the Cold rvill be refolved into 
a potable liquor^ 
This 
