Encyclopedia of Practical Receipts and Processes

How to silver a mirror, brew ginger beer, kill moths, make fireworks, tan a hide, bronze iron, cure a ham and clean a straw hat: William B. Dick's numbered encyclopedia answered the questions a nineteenth-century household actually had.

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Syrup of Phosphate of Zinc

Phosphate of zinc, 192 grains; water, 11 fluid drachms; syrupy phosphoric acid (specific gravity 1.5), 5 fluid drachms; syrup, 10 fluid Mix soda and 2 ounces phosphate of soda in another 2 pints boiling distilled water. the 2 solutions, filter the precipitate through muslin, wash it with hot distilled water till the washings no longer form a precipitate with chloride of barium. Dry at a heat not exceeding 120° Fahr. (Br. Ph).

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