COMMENTARY. We have treated of this article in the portion of our work devoted to dietetics. See Book I. We shall merely repeat that the two species of nuts described by Paulus and other ancient authorities are evidently the _Nux Juglans_, or walnut, and the _Nux Avellana_, or filbert. This is very evident from Galen’s description of them. (Opera. ed. Basil, ii, 88.) Our author copies closely from him. Dioscorides treats of the nuces still more circumstantially, recommending them both internally and externally as being vermifuge, and curing ill-conditioned ulcers, and many other diseases. The filbert, when triturated with axunge or bear’s grease, he recommends for the cure of baldness. (i, 178, 179.) The Arabians, under this head, do little more than condense the information supplied to them by their Grecian masters. See in particular Rhases (Cont. l. ult. i, 505), Avicenna (ii, 2, 42, 494), and Serapion (c. 162.) Serapion states that the nux avellana is useful in catarrhs, and as an application in cases of alopecia. Here, however, he professes to borrow from Dioscorides. Avicenna and Rhases recommend the oil of the hazel-nut in herpes esthiomenos, erysipelas, and fistula lachrymalis. They speak favorably of both as a remedy for the bites of venomous animals. They also are agreed that the walnut is expectorant. Καρυόφυλλον, Caryophyllum, _Cloves_; they are not the substance which their name might imply, but, as it were, the flowers of a tree which are brought from India; like chaff, black, nearly a finger’s length, aromatic, acrid, bitterish, hot, and desiccative in about the third degree. They serve many useful purposes for condiments and other medicines. * * * * *