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Oyl of Gujacum, in Latin, Oleum Gua∣jaci▪
Take the shavings of Guajacum, fill a large Re∣tort with them three quarters full; pláce it in a re∣verberatory Furnace, and join to it a great capa∣cious receiver, begin the distillation with a fire of the first degree, to warm the retort gently, conti∣nue it in this condition until there comes no more drops, which is a sign that all the flegm is distilled; throw away that you find in the receiver, and fitting it again to the neck of the Retort, lute well the junctures; you must afterwards increase the fire by degrees, and the Spirit and Oyl will come forth in white clouds; continue the fire untill there comes no more; let the Vessels cool and unlute them, pour that which is in the receiver into a tunnel lined with brown paper, set in a bottle or some other vessel; the spirit will pass through, and leave the thick and very fetid Oyl in the tunnel, pour it into a viol, and keep it for use.
Virtues. It is an excellent remedy for rottenness of the bones, for the tooth-ach, and it will cleanse old ulcers.