188 PHYSIOLOGICAL REMAINS. 



small chains, etc. because the stuff is not like to be 

 tough enough. 



For the better use, in comparison of iron, it is 

 like the stuff will be far lighter : for the weight of 

 iron to flint is double and a third part ; and, se 

 condly, it is like to rust not so easily, but to be more 

 clean. 



The ways of trial are two : first, by the iron and 

 stone of themselves, wherein it must be inquired, 

 what are the stones that do easiliest melt. Secondly, 

 with an additament, wherein brimstone is approved 

 to help to the melting of iron or steel. But then it 

 must be considered, whether the charge of the addi 

 tament will not destroy the profit. 



It must be known also, what proportion of the 

 stone the iron will receive to incorporate well with 

 it, and that with once melting ; for if either the pro 

 portion be too small, or that it cannot be received 

 but piece-meal by several meltings, the work cannot 

 be of value. 



To make proof of the incorporating of iron and 

 brass. For the cheapness of the iron in comparison 

 of the brass, if the uses may be served, doth promise 

 profit. The doubt will be touching their incorpo 

 rating ; for that it is approved, that iron will not in 

 corporate, neither with brass nor other metals, of 

 itself, by simple fire : so as the inquiry must be upon 

 the calcination, and the additament, and the charge 

 of them. 



The uses will be for such things as are now made 

 of brass, and might be as well served by the com- 



