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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Sapphire

Fuse 1152 parts paste and 63 parts oxide of cobalt for 30 hours in a luted Hessian crucible. Or: 8 ounces paste and 49 grains oxide of cobalt. A little manganese may be added to this last receipt.

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