Forty five pound of Raw CaUmim produces |c 
l^rntorc^ 
Brafs^Mmff (hvves inftead oit fo much Copper, but this 
cannot always be procured in quantities, becaufe it is a 
Golleftion of pi^es of old Brafs, which is-ufually pro- 
quted-in^finall parcel^ . \ 
The Beft Gum are not made of Malleable Metal, and 
(^anliot be made of pute Copper or Brafs, but it is necef- 
fary to pat in courfer Metal% to make it run clofer and 
founder 5 as Lead and Pot-metaL Bell-metal being.G;?- 
permdTin^ aud Pot-metal, Copper md Lead : about 
20./. of Le^^/ is.ufually put into 100 of P<?/-/;:/€/^^/, but 
about 6 L is fuffici^nt to put into icq /. of Gm-Metal. 
The Calamine-Jiones: wer^ heretofore fetcJi'd fromi 
P^oUnd : But fihce fetch'd from heiice by the Dutch 
The ManHfa&We 6i Brafs was privately kept in Ger- 
many for many hundred years, wherein many thou-- 
fands were employed and well maiatained. Come liaying^r 
raifcd themfetyes , to great Eftates. 
The .Z)«.^<:A may not import ( an Afi.of " Parliaraentr 
e)cprefsly forbidding them) the Copper nor tht 
'(fone-^^hut contrary tO; the ends, and perhaps the raean-=r 
ingbf the faid Aft, and more to the pablick difad— 
vantage^, they mingle and manufafture thofe two In— 
gredieiits. (^which.are of foreign growth to them anct^ 
by that: Eva (ion import theiii hither : . and the great Ma- - 
iiufaftures of Wire, and feveral other Commodities arin- 
iirig. of thofe important Materials^ 
'Aril 
