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 the bistort, and the galbanum, as well as the wine, were omitted. Edinburgh likewise omitted the scordium and other ingredients, and made the preparation still more astringent by the addition of catechu and kino. This was called Confectio Japonica. The mangled remains of the various formulas are represented in the British Pharmacopœia by Pulvis Catechu Compositus.

Theriaca was invented by Nero's physicians, Andromachus, and was devised as an improvement on Mithridatium which until then was the great antidote in Roman pharmacy. The most important addition which appeared in the new formula was the introduction of vipers. Andromachus named his electuary "Galene," which meant tranquil, probably to suggest that it was a soothing, anodyne medicine. It soon, however, acquired its permanent name, for it is referred to as Theriaca by Pliny, who would have been a contemporary with Andromachus. Pliny, it may be remarked, was rather contemptuous of the polypharmaceutic compounds which were then becoming so popular. They were devised, he says, "ad ostentationem artis;" just to "show off," as we should say.

Andromachus (or it may have been his son, a physician of the same name) wrote his formula, and described the virtues of his compound in Greek elegiac verses which he dedicated to Nero, and which Galen has preserved. The object of giving the formula in verse was that it should be less easy to modify it. The enumeration of the medicinal properties of the antidote left very little room for any other remedy. First it would counteract all poisons and bites of venomous