Galen lays it down as a rule that these fungous excrescences are to be repressed by powerfully desiccative substances, such as misy, chalcitis, or more especially verdigris; when burnt and washed they become mild detergents. (Meth. Med. iii.) Aëtius gives many useful prescriptions for such preparations, but they are entirely formed of the ingredients which enter into those of our author. Celsus gives a long list of caustics highly applicable in such cases: Adurunt, auripigmentum, atramentum sutorium, chalcitis, misy, ærugo, calx, charta combusta, sal, squama æris, veratrum et album et nigrum, cantharides, sandaracha, alumen scissile, &c. Pliny speaks of a composition of unwashed wool, with barley flour, and verdigris. Octavius Horatianus recommends the Phrygian stone pulverized, and a powder consisting of the recrementum plumbi, verdigris, aloe, and quicklime. Rhases and Avicenna copy from our author. Haly Abbas speaks of removing the superfluous flesh with an instrument. SECT. XLIV.—ON SPREADING ULCERS, PUTRID ULCERS, AND PHAGEDÆNA. Spreading and putrid ulcers are to be bathed with vinegar and oxycrate, an astringent wine, cold water, sea-water, or the decoction of lentil, of pomegranate rind, of the flowers of the wild pomegranate, of lentisk, of myrtles, of Egyptian thorn, or some other astringent and desiccant medicine. Cataplasms are to be applied to them of the flower of tares and liquid alum, the inner part of bread made of similago, an old goby fish, or some other old pickle, unwashed flesh, and liquid turpentine; these things are to be all pounded together in equal proportions. Or the parts may be anointed with equal proportions of birthwort, and the juice of the leaves of the Palma Christi, and half the quantity of verdigris, made with water to the thickness of honey; but if the eschar is not removed an equal proportion of elaterium is to be mixed with the verdigris. For putrid ulcers sori levigated and sprinkled on them is an effectual remedy, and above is to be put dried charpie; or the round birthwort and galls in equal quantities may be rubbed in with oil; or the root of the wild cucumber, or of cabbage, or of beet, or the leaves of dock are to be bound in a piece of linen, and put into ashes; when they are softened triturate with salt and apply; they will cleanse powerfully. Or apply green olive leaves boiled in wine with honey; or apply chalcitis, or parsley seed levigated, or apply linseed triturated with copperas, or use an application of thyme, dried grapes and boiled figs, or of fig leaves triturated with honey; or of nitre, cumin, and fine flour with honey; or of the root of the wild cucumber, or of squill boiled with honey; or of sori, dr. xij; of chalcitis, dr. x; of misy, dr. iv; triturate with half an hemina of the strongest vinegar until it is dried, and taking it off use by dipping a specillum in it, and rubbing it over the ulcer, and placing above it a double pledget out of wine and oil. But if it is