Purple is dydd by applying a cochineal color on the top of a Prussian blue. Bronze is obtained from a strong extract of logwood and alum. After being dyed the skins are rinsed stretched on boards rubbed smoothly down tacked aronud their edges and dried. Topical applications of color are given to the graiu, scientific american, 1862-01-18
Purple is dydd by applying a cochineal color on the top of a Prussian blue. Bronze is obtained from a strong extract of logwood and alum. After being dyed the skins are rinsed stretched on boards rubbed smoothly down tacked aronud their edges and dried. Topical applications of color are given to the graiu, scientific american, 1862-01-18
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