Thus the fine blue used by painters is a sublimate, and made thus:—Take 2 parts of quicksilver, 3 flower of brimstone, 8 sal ammoniac; and (having ground them) put them with the quicksilver into a glass retort, luted at the bottom; place the retort in a sand-heat; and (when the moisture is given off) you will have a splendid blue sublimate for painting.


INDEX.

FINIS


JARROLD AND SONS, PRINTERS, NORWICH.


Transcriber’s Notes: