(2234) 
fliall proceed to fay fomething of the Contents of this 
Supplement.whlch occaGon'd that relation* It feems then, 
that the learn'd Dr* P\olfink^, Profeffor of Phyfick in the 
Univerfityof Jena in Upper Saxony, in his Book, entis 
tied, Chymiain Artis formaimredaB/tj affirms, that the car- 
rent Mercury of Bodies is a Non-Ens : which our Aathor 
looking upon as an ungrounded and precarious Aflertion, 
labours in this TraciJ: to confute it, from Authority^Reafon 
and Experimenlt^aa may be feen pag. 8 1 ^(^c. That which 
we (hall take here particular notice of, is that Chymtcal 
Experiment , which giveth the Title to the Book, and is 
called Nerp^ alledged to prove the teal and (udden Gene- 
ration and Tranfmutation of Metcals. You may take it 
thus, if you pleafe 5 
He took common Bricbearth; dryM it in the Air that 
it might be fifted > then poured fo much Linfeed-oyI up- 
on it as that he might role it into little balls, of the fize of 
the Retort's neck, which they were to be put into, to the 
end, that the diftillation being made, he needed not to 
break his retort for the taking out of the Caput mortuum, 
but might referve it for other ufe. That the fire might the 
more forcible penetrate thofeglobuls, than if the matter 
were in one Mafs, he filled the Retort with them, and by 
degrees diftiird them with an open fire, during an hour 
or two. This diftillation being finifli*d ^ he found in the 
(Recipient an Oyl almoft like that, which he faith is im- 
properly caird Oleum Philofophorumi then the Retort be- 
sngcool'dghe took the litde balls outofit,which not being 
found red, by fo ftrong a fire, but very black, he fufpe(3fed 
that blacknefs proceeded from the Oyl, fome terreftrial 
parts of which, being fix'd and fever'd by vertue of the 
Brick-earth, might there have aflumed a Body * which of 
what kind it was, was now further to be examined by triaU 
Having therefore beaten fmall thefe black globuls, and fif- 
ted them,he put them into a difli, and having powr'd fome 
common water upon it, he ftirr'dit^ then being grown 
turbid, he gently powred it off, and powred on frefli 
clear water, ftill ftirring the matter : which he fo often re^ 
peatcdand continued, till the water came clear away, and 
there 
