COMMENTARY. Dioscorides describes it as having leaves like the lentil, or a little longer, a stalk a fathom long, a purple flower, and small root, and grows in wet and uncultivated grounds. This description seems clearly to point to the _Onobrychis sativa_, a plant of the tribe _Fabaceæ_. Dioscorides holds it to be diuretic and sudorific, and discussive of tumours. (iii, 160.) It appears to have been generally used as a diuretic. Pseudo-Dioscor. (Euporist. ii, iii.) Galen gives exactly the same account of it as our author; indeed, both borrow from Dioscorides. The Arabians would appear to have rejected it from their Mat. Med. Although it has long ceased to occupy a place in the Dispensatory, the sainfoin, or cockshead, is still known to the vendors of medicines, and retains its ancient characters of being “ripening, discussive, useful in strangury.” Gray (Pharmacop. 96.) Our old herbalist, Culpeper, ascribes to it the same virtues. (Complete Herbal, 52.) Ὄνοι, Aselli, Millepedes, _or Slaters_; those found under water-vessels, which roll themselves into a ball when touched, are possessed of discutient and desiccative powers. Therefore, when drunk with wine they cure dysuria and jaundice, and in cases of cynanche they are rubbed in with honey: and for earache they are triturated with rose oil, and being warmed in the shell of a pomegranate are injected into the ear. * * * * * COMMENTARY. The _Millepedes_ are thus described by Marcellus Empiricus: “In locis humidis et sordidis sub lapidibus inveniuntur bestioliæ multipedes quæ contactæ contrahuntur et rotundantur.” (De Medicamentis, c. xxxv.) They are the Porceliones of Cælius Aurelianus (i, 4), who calls them “animalia quæ humectis et aquosis locis sæpe nascuntur, a Græcis appellata onisci.” (Tard. Pass.) Almost all the ancient authorities on the Materia Medica from Dioscorides downwards, recommend them in the same cases as our author does. In fact, almost all the authorities take the characters of the millepedes from Dioscorides. (ii, 37.) See in particular Serapion (De Simpl. 4, 29), Avicenna (ii, 2, 718.) They particularly commend the use of them in jaundice. In English they are called _Slaters_ or _Cheslops_. They held a place in the Edinburgh Dispensatory until after the edition of it in 1811. In fact, the highest modern authorities testify to the medicinal virtues ascribed to them by the ancient authorities. Moses Charras, who makes frequent mention of them, says, that a volatile salt is obtained from them which is highly diaphoretic. Dr. Hill calls them aperient, attenuant, and detergent. Dr. Mead recommends them strongly for their diuretic property. He directs us to put them into wine, and afterwards to strain off the liquor, and sweeten it with honey or sugar. (_Monita et præcepta._) It would appear that they are still used in France as diuretics. In Dr. Pemberton’s edition of the London Dispensatory, 1746, it is directed to inclose