A NOVEL CUTTING OFF MACHINE. THE LAC INDUS TRY. Fig. 3METHOD OF WASHING LAC A NOVEL CUTTING OFF MACHINE. Fig. 1TOOLS AND APPARATUS USED IN THE WORKING OF LAC. Fig. 4 PURIFICATION OF LAC. Fig. 5PREPARATION OF COLORED LACS. Fig. 2. MADAGASCAR LAC, scientific american, 1895-11-16
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