tells us that Gold^wajhers go about the Country, and 
get their living by wafliing Gold, together with their man- 
lier of wafhing it ; with a defcripcion of that compendious 
Wajh-workjoy JR^ttar or Seeve madeof Brafs wire, with 
aflat Hearth under it, and a Channel for the Water 5 this 
ferves iox Sandy Works ^ 
That Gold Oars out of the Veins are to be prepared two 
way es, either by a Wetov a Dry Bucklng>FUnty and Horn [iony 
Gold Oars are firft to be Rafted and fuddenly Quenched 
to make the Oar run together* and the Flint brittle. 
He alfo (hews how Gold slicks may be made to profit 
^^vith and without ^ick^sdver. That there are two forts of 
Touch needles for Gold^ the White and the l^edAo called from 
the excefs of Silver or Copper in their<ioii]porition. That 
the BlackjTouch'Jiones are beft, tho not all equally good: if 
they are too weak 5 no Gold toucheth bright upon them, 
if too hard, the Hungarijh andother weak Golds will not 
touch^ truef "oFi 
He farther inftruits how to prove Gold by J^qua-fortis , 
and the Goldifli Silver by wafliing it in common water • 
How to find whether Silver contains Gold without the Wa^ 
ter proofs namely by drawing a Wire of true Gold, and anr 
other of the Silver you would prove, through the fame 
hole> and then finding the difference by weight, 
Several wayes and Inftruments are taught lor the making 
'Aqua.fortis^ though Iron Jugs are prefered for this reafon 
anibng otherSj that Aqua-fortts 6x^\\\td. out of them, makes 
the Gbld of an higher Colour. 
To make an excellent ilrong ^^//^?-/irif/j*5 he commends 
Calcin'd Vitrioh Nitre, Alum^md burnt Flintsi after the Diftil- 
lation,' it is to be digefted, and rectified from f refli Nitrey Vi-^ 
trioUMmt Vlink^WerAigrije^to^ filed Iron^and 
White^lead. Aqua JR^egts is made by theaddition of Salt to 
go6d Aqua for tis, &c. 
Then Cm?/2^m^ is mentioned, what it is^, and howper- 
|i>i:me4That toit is required fucK matt^f ?? will woric upon 
"" ' . - . " V .Silver 
