PHYSIOLOGICAL REMAINS. 



197 



So of brass : brass with iron : brass with tin. 



So of iron : iron with tin. 



What be the compound metals that are common 

 and known ? And what are the proportions of their 

 mixtures ? As, 



Latten of brass, and the calaminar stone. 



Pewter of tin and lead. 



Bell-metal of etc. and the counterfeit plate, which 

 they call alchemy. 



The decomposites of three metals or more, are 

 too long to inquire of, except there be some compo 

 sitions of them already observed. 



It is also to be observed, whether any two metals, 

 which will not mingle of themselves, will mingle 

 with the help of another ; and what. 



What compounds will be made of metal with 

 stone and other fossils ; as latten is made with brass 

 and the calaminar stone ; as all the metals incor 

 porate with vitriol ; all with iron powdered ; all with 

 flint, etc. 



Some few of these would be inquired of, to dis 

 close the nature of the rest. 



Whether metals or other fossils will incorporate 

 with molten glass, and what body it makes ? 



The quantity in the mixture would be well 

 considered ; for some small quantity perhaps will 

 incorporate, as in the allays of gold and silver coin. 



Upon the compound body, three things are chiefly 

 to be observed : the colour ; the fragility or pliant- 

 ness ; the volatility or fixation, compared with the 

 simple bodies. 



