Avicenna recommends emetics, phlegmagogues, bleeding in the arm, attenuant food, and avoiding all gross things and repletion. As a discutient he and Serapion commend the diachylon plaster. Haly Abbas likewise mentions this application, and also directs the swellings to be burnt with caustics. Alsaharavius briefly recommends excision or burning. Serapion evidently copies from our author. Avenzoar gives a very full account of scrofulous swellings, which, he says, are formed in general of a gross and viscid phlegm. Except in very particular cases he disapproves of bleeding. He approves in general of discutient applications; but when the swelling tends to suppuration, he directs us to promote it; and when pus is fairly formed he recommends us to let it out, but cautions the surgeon not to attempt this operation unless he has a practical acquaintance with anatomy, lest he wound any of the veins, arteries, or nerves. Rhases forbids the knife when the scrofula is in the neck or deep seated. In certain cases he approves of destroying the tunic with septic applications. Brunus, and the other surgical writers of that age, in imitation of the Arabian authorities, direct scrofulous tumours to be treated with discutients, excision, or septics. A discutient ointment recommended by Brunus consists of litharge, common oil, and the juice of melons and fenugreek. His septic medicine is a mixture of arsenic and quicklime, which is to be applied with honey. (Chirurg. Minor. 19.) SECT. XXXIV.—ON STEATOMA, ATHEROMA, AND MELICERIS.