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Garnet Foil

Dragon's blood dissolved in rectified spirit of wine. (See No. 2449.) made of copper, tinned copper, tin, and silvered copper, but the latter is used for superior work at the present day. There are two descriptions of foils employed, viz.: white, for diamonds and mock diamonds, and colored, for the colored gems. The latter are prepared by varnishing the former. By their judicious use the color of a stone may be often modified.

Thus, by placing a yellow foil under a green stone that turns too much on the blue, or a red one turning too much on the crimson, the hues will be brightened. By the skillful use a little Prussian blue. With this varnish of the following varnishes, good imitations of the gems may be cheaply made from transpa-