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
Keywords:
Purple, dydd, applying, cochineal color, top, Prussian blue, Bronze, obtained, strong extract, logwood, alum, dyed, skins, rinsed stretched, boards rubbed smoothly down tacked aronud, edges, dried, Topical applications, color, given, graiu, scientific american, 1862-01-18, science, scientific, sciences, mind, health, tech, sustainability, publication, lab, sciam, sa, scientist, research, american, experiment, education, discovery, technology, analysis, magazine, u.s., insights, developments, weekly, broadsheet, inventor, innovation, inventions, patented, industrial revolution, emerging, trends, monthly magazine, united states, engravings, curious works, paper, discover, Scientific Paper, Weekly Journal, Practical Information, Art, Science, Mechanics, Chemistry, Manufactures, research, education, scientist, innovation, 19th century, vintage, america, Rufus M. Porter, 1845, journal, academic, newspaper illustrations, retro style, old-fashioned, media illustrations, victorian style, news, newspaperheadline, 19th century style, illustration, journalism
Image ID:
The watermark in the image will not appear on the final download.