8. _Chrome orange._

Pad through a mixed solution of the subacetate and acetate of lead,

three times in succession, and dry in the hot-flue; then wince for ten

minutes through weak milk of lime; rinse; wince for a quarter of an hour

in a warm solution of bichromate of potash; and finally raise the colour

by wincing the goods through hot lime water.

A Dictionary of Arts, Manufactures and Mines containing a clear exposition of their principles and practice · 第 55 / 421 题