[ 123 ] 
meafure feparates and fwlmson thefurface of the ful*^ 
phurated tin, 
2d. Take 5 lo of fulphurated tin/ powder and 
mix it well with ^ 4 of fulphur, and ^ 2 of fpirit 
of faltj calcine the mixture as the forn)er. This 
forms an Aurum mofaicum of a tolerable good co- 
lour. This mixture fbon grows warm of it felf after 
being put into the body, and produces a penetrating 
vinous fmell, no ways like that which is afforded by 
difTolving tin in the acid of fait. 
In this operation, part of the tin unites with the 
acid of fait, and is at laft diflipated in the operation. 
3d. Take ^ 8 of tin, and faturate it with fulphur, 
powder and mix it with ^ 5 of fulphur ; put it into 
a body, and pour on it 3 2 of volatile liver of fulphur 
obtained in making Aurum mofaicum, and calcine 
it as fore. This does not make fo good a coloured 
Aurum mofaicum as the former, owing to the fulion 
of the fulphur, which in great meafure feparates from 
the fulphurated tin. Soon after the volatile liver was 
poured on the mixture of fulphurated tin and ful- 
phur, it grew fo hot that the body could fcarcely be 
held in the hand. 
4th, Take ^ 4 of tin, faturate it with fulphur, 
powder and mix it well with ^ 2 of fulphur, and 
J I of tin dilTolved in the acid of fait and cryftallifed ; 
calcine it as ufual. This produced § of very 
good and quite taflelefs Aurum mofaicum, fo that 
I 4 of tin by its union with fulphur encreafed in 
weight § 2 
This operation was done in a retort, to which there 
was luted an adopter and receiver, in order to coiled: 
R 2 the 
