pestle, laying a cloth over the 130 mortar to catch pieces that fiy out, then the fragments thusformed are crushed against the sides of the mortar. GRINDING THE COLORS. The color thus triturated is then reduced to a state of im-palpable powder by grinding. To grind the colors well is always… … ing. The success of a work of art may depend upon the greatand equal fineness of all the colors and of their purity; in con-sequence the most certain means of attaining these conditionsshould be employed, no matter what the expense. The successof a high priced work of art will repay the outlay. In…
Pottery
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