that its bark is desiccative, but its root weaker. (v. 42.) See also Rhases (Cont. l. ult. i, 446.) Servitor describes both a concrete and an expressed juice of mandragora. The former, which he calls lachryma, he says could not be procured everywhere. Even the non-professional writers allude to its soporific powers. Thus Lucian speaks of ὕπο μαδραγόρας καθεύδειν. (Timon.) Pollux says that it produces heaviness of the head, that is to say, stupor. Our old herbalists, Turner, Gerard, Parkinson, and Culpeper, mention the soporific powers of the mandrake, but in such a way as implies that they had not much practical acquaintance with it. By the days of Boerhaave and Quincy, its internal use had been abandoned, both in this country and on the continent. Although it has now disappeared from our Dispensatories, we see no good reason why its well-regulated use might not be revived. That the ancients have described its operation on the animal economy correctly, is admitted by our latest writers on Toxicology and the Materia Medica. See the works of Orfila, Christison, and Pereira. In conclusion it may be proper to state, that the modern Arabians and Persians still use the mandragora as a narcotic and antispasmodic. See Ainslie (Mat. Ind. i, 1, 116.) It is not contained in the Greek Pharmacopœia of the present day. Μάννα λιβάνου, Manna Thuris, has similar powers to frankincense, but enfeebled and gently astringent. * * * * * COMMENTARY. Gesner says of it, “Manna thuris est fragmina minora corticis ramentis permista.” (Lexicon Rusticum.) Dr. Hill calls it the fragments of the cluster frankincense broke off in the carriage. It is singular that the Greek and Roman writers make no mention of the manna now in use, namely, the concrete juice of the _Fraxinus Ornus_. Actuarius had, no doubt, learned the use of it from the Arabians. (Meth. M. v, 8.) We will treat of the true manna more properly in the Appendix to this section, among the medicinal substances introduced by the Arabians. Μάραθρον, Fœniculum, _Fennel_, is heating in the third degree, but desiccative in the first; it therefore forms milk and relieves suffusions of the eye. * * * * *