The Boot and Shoe Manufacturers' Assistant and Guide. / Containing a Brief History of the Trade. History of India-rubber and Gutta-percha, and Their Application to the Manufacture of Boots and Shoes. Full Instructions in the Art, With Diagrams and Scales, Etc., Etc. Vulcanization and Sulphurization, English and American Patents. With an Elaborate Treatise on Tanning.

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SHELLAC VARNISH.

Take five ounces of the best shellac, reduce it to a gross powder, and put it into a bottle in a gentle heat, or a warm, close apartment, where it must continue two or three days, but should be frequently well shaken. The lac will then be dissolved, and the solution should then be filtered through a flannel bag; and, when the portion that will pass through freely is come off, it should be kept for use in well-stopped bottles.

The portion which can only be made to pass through the bag by pressure, may be reserved for coarse purposes.

Shellac varnish is rather softer than seed-lac varnish, but it is the best of varnishes for mixing with colors to paint with, instead of oil, from its working and spreading better in the pencil.