Young's Demonstrative Translation of Scientific Secrets by Daniel Young
page 75 of 236 (31%)
page 75 of 236 (31%)
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dissolved, you will have a beautiful purple.
201. A BLUE STAIN FOR VIOLINS, &c. Take of oil of vitriol in a glass bottle, 1 lb.; put into it 4 ozs. of indigo, and precede as directed in dyeing. 202. GREEN STAIN FOR VIOLINS, &c. Take of strong vinegar, 3 pints; of best verdigris, 4 ozs., ground fine; of sap green, 1/2 oz.; of indigo, 1/2 oz.; mix all together. 203. GENERAL DIRECTIONS FOR DYEING The materials should be perfectly clean; soap should be rinsed out in soft water; the article should be entirely wetted, or it will spot; light colours should be steeped in brass, tin or earthen; and, if set at all, should be set with alum. Dark colours should be boiled in iron, and set with copperas; too much copperas rots the thread. 204. FOR COLOURING SKY BLUE Get the blue composition; it may be had at the druggist's, or clothier's, for a shilling an ounce. If the articles are not white, the old colours should all be discharged by soap or a strong |
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