C 213 ) 
although it hath no ill qi^ality ar all 5 but if it hath Copperas in it, 
it will grind the Quickfilver in great extremity. Now if Qaick- 
filver be without any forain impreffion upon it, and be diffolved 
into Lu which is white, 'tis calTdj as was juft now faid , Lis of 
Quickfilver; but of other materials is call'd that which is 
made by Quickfilver of Tin or Lead^ and L^Vof Silver is the fine 
and fubtile parts of Silver,niade by the repaflingof the Quickfilver 
through the Ore, but not as yet joyncd and incorporated with ic ^ 
which when it is, they call it TeU^ that is, Ball or Pellet. As to the 
/ Nature oi Quickfilver^ 'tis a body of fo admirably uniform a fub- 
ftance, and of parts foperfeflly united, that even the fire, which 
feems to be its greateft enemy,is not powerful enough,by dividing, 
to corrupt or deftroy it,as it vifibly dctb all other meta's and bo- 
dies, except Gold and Silver. 
The Jixteenth examins, Whether it he fitting^dtfirjl to put-m all the 
Quickfilver and other Materials at ome^or m} This Author is for 
thenegative,al!edging his reafons for itjand efpecially Experience, 
by which,he faith, 'tis found, that the extraordinary cold of much 
Quickfilverdothaccidentaliy binduptheOre, and hinder the re- 
fining. Whichdamage,/?^y^/V^,foliowsalfo, if men exceed in the 
quantity of other materials, they put into the Ore that needs it,be- 
caufe it fo dulls the Quickfilver, that it will lay hold on no Silver 
at all ^ which therefore will very hardly ever be reduced into that 
condition it ought to be. Yet he advertifes withal, that if itbe 
needful to refine with Lime^ his rule w^U not ferve in that cafe, but 
the Lime muft be put-in all at once,taking efpecial care,that you do 
not put in too much of it, becaufe that that greatly hinders the 
Quickfilver from laying hold of the greater plate* 
The/i^w^^^^;^/'^, difcourfes of tht Often repafjlngthe Quickftl' 
ver through the Ore^ and the Effects thereof : And the eighteenth and 
nineteenth^ tmmtxzttd'wtTSJkeidents^vphich happen in the way of 
Refimng by Quickfther^ and their Remedies : Where he obierves, 
that if the Quickfilver be very much chargedjabove what it ought, 
with materials, fuchas Lead, Tin,Iron, Lime,it will not appearor- 
bicular, but prolonged like little worms ; and if it be ftirr'd about 
the Tray without water, it will make drops with jittle tails, and 
flick to the fides of the Tray : And when it is of this condition, 
'tis a fign, faith he^ that 'tis killed,or its virtue obtunded from lay- 
ing hold on the Silver. Which evil how 'tis 10 be remedied, is at 
large declared in the fame Chapters. 
twentieth one and twentieth^ infi ruit us, Bovfi to hnow^. 
vchethtr 
