* * * * * COMMENTARY. It appears evident that it is a species of _Lichen_ or _Usnea_, but what species is not clear. The term usnea is borrowed from the Arabian authors. Our author copies closely from Galen. Dioscorides recommends it as an astringent principally in affections of the womb, in the form of a hip-bath or fumigation. Avicenna (ii, 2, 713) and Serapion (c. 247) briefly notice several species of _usnea_ without appearing to identify it with the bryon of the Greeks. Rhases, however, is quite aware of their identity. (Contin. l. ult. i, 753.) Avicenna says it is emmenagogue, and procures the delivery of the fœtus either dead or alive. He adds that, in a dose of 10 drs. it acts as a deadly poison. Serapion recommends it principally as being diuretic and emmenagogue. Several species of the genera lichen and usnea are still to be found in the shops, and have the reputation of being powerful astringents. See Gray (Suppl. to the Pharmacop. pp. 11, 12.) Βρυωνία, Bryonia, _Bryony_; the White Vine is so named. * * * * * COMMENTARY. See under ἄμπελος. Mesue recommends it as a phlegmagogue, deobstruent, and diuretic medicine; for epilepsy, vertigo, coldness of the nerves, coughs, asthmas, especially in a linctus, in pleurisy, and as an external application to hard aspostemes, inflammations of the spleen, in the form of a plaster, with figs and wine; for the removal of whitlow, spiculæ of bones, thorns, and the like. In a draught, he says, it proves emmenagogue and procures abortion. He also commends it as a cosmetic in diseases of the face. Both internally and externally he praises it in scrofula. He adds further, that it is useful in the cure of persons who have been bitten by venomous animals. In a word, no ancient author has bestowed so flattering an eulogium upon bryony as Mesue (De Simplicibus.) We need scarcely say that bryony (_Bryonia dioica_ or _alba_) is now regarded in the light of a poison rather than a medicine. See Orfila (Toxicol. Gen. i, 679), and Christison on Poisons (p. 445, First edition.) Γἀλα, Lac, _Milk_; every sort of milk consists of three substances, a cheesy, a serous, and a fatty part, which last is contained in greatest abundance in the cow’s milk, and from it butter is formed. Whey is possessed of detergent properties, and hence it loosens the belly if separated by boiling. The cheesy and thick part is more compact, and on that account blunts acrid humours. When milk is boiled either by hot pebbles or any other way, it is an excellent remedy for dysenteries and other acrid defluxions on the bowels. The whole contents of milk are suitable applications for acrid humours of the eye, and all other acrimonies. The milk of a woman is of the best regulated temperament; after which the goat’s, and then that of the ass and sheep; and last of all the milk of cows. * * * * *