Antimony. 149

Dry Sea-falt two pounds.

Pour the vitriolic Acid into a retort, ad-ding by degrees the Sea-falt and Crocns ofAntimony, previoufly mixed j then diftill ina fand-bath. Let the diftilled matter be ex-pofed to the air feveral days, and then the fluidpart poured off frorn the dregs.

PULVIS ANTIMONIALIS.

Antimonial Powder.

Take of Antimony, coarfely powdered.

Hartfhorn-ühavings, of each twopounds.

Mix, and put them into a broad red-hotiron pot, ftirring conftantly tili the mafs ac-quires a grey colour. Powder the matterwhen cold, and put it into a coated crucible.Lute to it another crucible inverted, whichhas a fmall hole in its bottom : augment the

L 3 fire