COMMENTARY. Without doubt the _Amomum Zingiber_. Dioscorides after describing the country of the ginger, and the characters of the best kinds of it, states its medicinal powers to be heating, digestive, mildly aperient of the bowels, and stomachic; and recommends it in nebulæ of the cornea, and adds of it, that as an ingredient in antidotes and otherwise it resembles pepper (ii, 189.) Galen writes very elaborately in explanation of the action of ginger on the animal frame; and, in accounting for the difference between it and pepper and other articles of the same class practically, his conclusions regarding it are the same as our author’s. Aëtius and Oribasius copy from him. Serapion, after quoting the opinions of Dioscorides and Galen, gives a very sensible account of the virtues of ginger from Mesue and another unknown authority. Mesue says it is beneficial in obstructions of the liver, arising from coldness and humidity; that it softens the belly, heats the stomach and the whole body; promotes digestion; is alexipharmic and aphrodisiacal; removes phlegm (water brash?) and is beneficial in obscurity of vision. The unknown authority says it improves the memory, and removes the humidity in the stomach, arising from the eating of fruit, such as melons and the like (De Simpl. 336.) In the works of Mesue, now extant, ginger is not treated of. Rhases gives very interesting extracts from Dioscorides, Galen, and various Arabian authors. Of the latter, one says of ginger, that it softens the belly, and another that it binds it. (Cont. l. ult. i, 762.) Avicenna quotes Dioscorides as stating that it is aperient, and Alcanzi as holding that it is astringent. He agrees with the latter, that ginger binds the bowels, when their loose state arises from indigestion and viscid humours. He agrees also with the other authorities, that it is stomachic and aphrodisiac. (ii, 2, 735.) Ζύθος, Zythus, _Ale_, is of a compound nature; for it is acrid, as being formed by a putrefaction (“fermentation?”), and cold, as being possessed of an acid quality. It therefore produces bad chyle. * * * * *