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104 Dl^TILLED OlLS.

of which being ftopped by a finger, and the liquorpoured intoit, the Oil, if light, foon fwims on thefurface, or fubfides if ponderous ; the undermoft,whether oil or water, is, by removing the finger,firfb let out; the uppermoft retained by replacingthe finger, and again clofing the ftem. L.

OLEUM PETROLEI.

Oil of Petroleum.

Let Petroleum be diftilled ina fand-heat.

OLEUM TEREBINTHINiE.

Oil of Turpentine.

Take of common Turpentine fivepounds.Water four pints.

Diftill the Turpentine, withthe water, froman alembic of copper.

R E S I N A