Dictionarium polygraphicum, or, The whole body of arts regularly digested ... : illustrated with fifty-six copper plates (1758)
Barrow, John, teacher of mathematics, Toms, W. H. (William Henry), ca. 1700-ca. 1750, Devoto, John, fl. 1719-1752, Hitch, Charles, d. 1764, Hawes, Lacy · London : Printed for C. Hitch and L. Hawes, in Pater-noster-Row : J. Hinton, in Newgate-Street : and L. Davis and C. Reymers, against Gray's Inn · leaf 385
it for three hours; thentwelve hours in the annealing furnace, that it may cool gently ;then takeout your crucible, and break it, and take out the mat-ter, and cut and polifh it, and you will have Turcoife-colouredHones like thofe of the old rock. The way of making TuRCOiSE bhe^ a particular colour… … f U R 337 pi-cparations, which colour mud be fair and full, for all dependsoh that; it being well melted, put into it, little by little, fea faitdtxrepitated white, and reduced to powder, mixing it well anifoftly, as we have noted in fpeaking of other metalline colours ;and the blue, from clear and…
Arts · Industrial arts
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