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To Fuse Gold Dust

Uses such a crucible as is generally used for melting brass; heat very hot; then add the gold dust mixed with
powdered borax; after some time a scum or slag will be on top, which may be thickened by the addition of a little
lime or bone ash. If the dust codtains any of the more oxidizable metals, add a little niter, and skim off the slag
or scum very carefully; when melted, grasp the crucible with strong iron tongs, and pour off immediately into
molds, slightly greased. The slag and crucibles may be afterwards pulverized, and the auriferous matter recovered
from the mass through cupellation by means of lead.