iriuft be again laid over with the fame fort of Cl^y. (lufQ 
conftantly to bind about the Mould with Iron Wire and 
then lay on more Clay ) and when this Mould is well drie, 
then I Iieat it red hot as I did before the Core, fo now 
both together. 
The firft time I prafilced this method, I burnt both 
Core and Mould together, and all the fmall bitts of 
Metal melted, fo that, though it chanced to fucceed well, 
yet I was in great danger of mifcarriage ; and ever fince I 
burn the Core firft, that fo there rnay not need fo ftrong 
a lire to burn thQ Mould: but for fmall manageable Statues 
of not above a foot of two high, they may be both burnt 
together, and there is no need of the holes but the 
Mould may be erted, and the Wax run out by tlie Chan- 
els /./.and £. • 
The Mould being thus burnt, I ilop with the fame Clay 
the two holes g.g, and theiri bury it in a pit, and pro- 
ceed as is ufual in cafting of Bells and the like, but care 
nnuft be taken that the Metal be very well in fufion. 
r If it be a frnall Statue not above a foot or two high, whole 
Mould may be managed in ones hands; then I make me a 
concave Statue of Wax, of the thicknelsl defire, and then 
place upon it all thole great and lelTer Chanels, as afore ; 
which done I put it all togather, into a liquid fubftance 
made of Plaifter and Tile or Brick duft tempred with wa- 
ter; but I doubt not but the way of cafting in Plaifter is 
-well known in Londo^^ and therefore lhall not need to 
] write it. 
If the Statue be intended very thin, then I take Copper, 
iand when it is well in fufion, I mix with it a good quanti- 
f ty of Zsm^ without oblerving any certain proportion of 
weight ; the more ZJnc the better the Metal runs. I 
have fometimes for fmall and thin Stafues put in above a 
third part of Z^nc. now Zim is a certain Mineral Sub- 
ftance like Marcafite or Bifmuth^ in French du Zinc ; with- 
out it our work would not fucceed if it be very thin, and 
Kk2 I 
