{Recipe} {vitriol} & {nitre} (but it must be fixt not to fire & flush) mix them together in fine pouder, melt the {tin} & bring it to pouder, by casting on the said pouder of {vitriol} & {nitre} stiring them together in flux, then beat it very fine, & again Calcine it in a pot & if any reduce, put it away, & be sure it be all well {incinerated} & that none reduce, then melt it with this following flux

{Recipe} {vitriol} 1 part {tartar}. 2. parts, the weight of these two in comon {salt} melted & the weight of halfe the mixture of sandiver mix all these very well in pouder, & then take 3 parts of this flux (or more & 1 part of {tin} calcined as above and mingle all these very well together, & melt them downe with a strong blast untill all be turned into glass, then break the pot, & if thou hath wrought right there will be pure {gold} in the bottome of the pot in small grains.

this Dr. May had from Rome out of the Popes laboratory & hath been found true