Cornu Capri, _Goatshorn_, and Κ. ἐλάφου, Cornu Cervi, _Hartshorn_, cleanse the teeth when burnt, and restrain the progress of foul ulcers. The hart’s horn, when pulverised and then applied, fastens loose teeth; when washed after burning, it relieves dysentery, cæliac affection, spitting of blood, and jaundice, when given to the amount of two spoonfuls. It is also mixed up with ophthalmic remedies. The horn of a bull, when taken in water, restrains hemorrhages. * * * * * COMMENTARY. Dioscorides, Galen, and Serapion speak of the medicinal properties of _horn_ in nearly the same terms as our author. We need scarcely say that the stag’s or hart’s horn has been much used in modern times for the preparation of ammonia, which is hence called the spirit of hartshorn. Dioscorides recommends hartshorn when burnt until it become white, and cleaned like calamine, in affections of the eyes. It will now be readily understood, that when so treated it is reduced to a phosphate of lime. Avicenna further prescribes it for removing the swelling of dropsy; and, like Dioscorides, he recommends it in jaundice. (ii, 2, 178.) We would remark, in conclusion, that it was the red deer which furnished the medicinal hartshorn of the ancients, but that the moderns have commonly used the horns of the fallow-deer instead. See Hill’s Materia Medica (835.) Κεράσια, Cerasia, _Cherries_; the sweet are more laxative, the austere more stomachic, but the acid agree best with pituitous and foul stomachs, owing to their being incisive. The gum of the tree smoothes asperities of the trachea, and relieves calculous affections when drunk with wine. * * * * * COMMENTARY. This unquestionably is the _Prunus Cerasus_, L. We have given some account of cherries in the portion of our work devoted to ancient dietetics. Galen, in his work on Simples, treats of them with great precision; he remarks that in some the austere quality, in some the sweet, and in others the acid prevails, and that when unripe the sour is predominant. In fact, our author’s account of them is manifestly abridged from Galen. Aëtius and the other authorities, in like manner, copy from Galen. See also Serapion (c. 145.) Κερατωνία, Ceratonia, _Carob-tree_, and the fruit of it (_siliquæ_) are possessed of desiccant and astringent powers, with a certain share of sweetness. * * * * *