aie! ii 3i coeds Pe) td a 
29 i 3.128 to. sing art -vabil 
He Second Letter of the Crofs Row, is the Separation of ! 
and Minerals.. Separationisof threeforts; thefirftis, The fe 
of the pure Metal from the Ure or Drofs, which we call Refining: 
fecond is, The drawing one Metal or Mineral out of anothet, which we| 
may call Extracting. ‘The third, The feparating of any Metal nto his ! ‘, 
Original or Elements, or callthem what you will) which wor 
Precipitation. © , , 1 SB | 
Rot Refining, we aretoenquircof it according to the feveral Metals; | 
As Gold, Silver, &c, Incidently, we are to enquire of the firft Stone; ‘or | 
Ure, or Spar, or Marcafite of Metals feverally ; and what Kinde ‘of | 
Bodies they are ; and of thedegrees of Richnefs, 9 | 3 0 
Alfo, we areto enquire of the Means of feparating, whether by Fire, i 
parting Waters, or otherwife, | 7 nial ae aM ald 
Alfo, for the manner of Refining, you are to fee how you ‘can miuilti: | 
ply the Heat, or haften the Opening ; and to fave charge, in the 
Refining. ’ ' 0 boTOSi Ne FOE 
r ale means of this is in three manners ; that is to fay; In the Bit | 
_of theFire : Inthe mannerof the Furnace to multiply Heat, by Union and 
Reflexion: And by fome Additament or Medicines, which will help the 
Bodies to.open them the fooner: - nt Tee 
Note, the quickning of the Blaft, and the multiplying of the Heat in 
the Furnace, maybethe fame forall Metals ; but the Additaments muf 0 | 
feveral according tothe natures of the Metals. — * OTS Oa 
‘Note again, Thatif you think the multiplying of the Additament in | 
the fame Proportion that you multiply the Ure, the work will follow, | 
you may be deceived : For quantity inthe Paffive willadd more refiftance, | — 
then the fame quantity inthe A Give willadd force. irgio Sea) 
’ For Extra@ing, youare to enquire what Metals contain others, and @ 
likewife what not >? As Lead Silver, CopperSilver,&c. 
: Note, although the charge of Extra@ion fhould exceed the worth, } 
oe that is not the matter; For, atleaft, it willdifcoyer Nature and Pofii. a 
ilicy, the other may be thought on afterwards. © : bein Te 
: We are likewile to enquire, whatthe differences are of thofe Metals, | — 
| which contain more or lefs, other Metals ; and how that agrees withthe | 
| poornefs or richnefs of the Metals, or Ure, in'themfelves: Ashe Te 
that contains moft Silver, is accounted to be more brittle; and yet other- } 
| wife poorer initfelf —  ~ ° NE DOC? oe 
' For Principiation, T cannot affirm, whether there be any fuch thing, | 
or no. And, J think; the Chymifts:make too much ado about it. But how. | 
foever it be, whether Solution or Extradion, or a kinde of Come i 
| by the Fire, it is diligently to be enquired , ‘What Salts, Sulphur, Vieri 
y 
| Mercury, or thelike Simple Bodies are tobe found inthe feveral Metals \) 
rr 
/ and in what quantity. . 
