Henley's Twentieth Century Formulas, Recipes and Processes

by Unknown

PEGAMOID.

Camphor, 100 parts; mastic, 100 parts; bleached shellac, 50 parts; gun cotton, 200 parts; acetone, 200 parts; acetic ether, 100 parts; ethylic ether, 50 parts.

PEN METAL: See Alloys.

PENCILS, ANTISEPTIC: See Antiseptics.

PENCILS FOR MARKING GLASS: See Etching, Frosted Glass, and Glass.

PENS, GOLD: See Gold.

PEONY ROOTS, THEIR PRESERVATION: See Roots.