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Blue Sealing-Wax

Take 16 crustations which would otherwise fasten parts mastic, 4 turpentine, 8 mountain-blue, themselves on the sides of the boiler. In 3 burned selenite. The mountain-blue turns selecting one of these substances, the princigreen by the heat of melting the mixture; pal object is to secure the largest quantity of therefore it is better to use fine indigo, or very tannic acid and soluble extractive matter for fine Prussian blue; but in that case the shel- the lowest price. Some of these substances lac must be particularly light-colored. are said to be very effective, 1/2 pound of