COMMENTARY. As stated by us in the Fifth Book, the Echidna Asiatica of Nicander is the _Coluber Ægyptius_, and the E. Europæa the _C. Berus_. The ἔχις, probably is the _C. Amodytes_. Dioscorides recommends vipers, having their head and tail cut off, and the entrails taken out, boiled with oil, wine, a little salts and dill, for nervous affections and scrofula. He gives no credit, however, to the vulgar belief of his time, that living upon vipers prolonged life, or that they prevented lice from forming on the body. He describes distinctly the process of preparing salts from vipers, but says they have not the same efficacy as the flesh. (ii, 18.) The Arabians display much more credulity than Dioscorides, in describing the medicinal virtues of vipers, ascribing to them wonderful powers, not only of preserving life, but even of restoring youth. See in particular, Avicenna (ii, 2, 608), and Rhases (Cont. l. ult. i, 731.) Galen gives a very lengthened disquisition on the medicinal virtues of vipers. (De Simpl. xi.) Aëtius abridges the same. (ii, 160.) See Oribasius (Med. Collect. xv, 2.) We shall have occasion, however, to treat further of the medicinal properties of the viper when describing the composition of the theriac; and, instead of collecting the sentiments of the ancient authorities on this head, we shall in this place merely subjoin the opinion of a modern author, who appears to have been familiar with the use of it: “The powder of vipers is very much enlivened with the volatile salt wherewith the vipers abound, which enables it to force its virtues through the pores, though never so close shut, to the more remote parts of the body. It is a singular medicine to cure scabs, itches, and erysipelas, and particularly the leprosy. It restores plumpness of body to persons wasted with long agues and tedious diseases. It is to be taken fasting, in broths, wine, or any other cordial liquor, or else incorporated with some syrup, or in some confection like a bolus.” (Moses Charras.) In Scotland the adder (which is a variety of the _Coluber Berus_) is a popular remedy for malignant diseases of the skin. It is taken in the form of soup, as described by Dioscorides. The viper broth is described in Quince’s Dispensatory (400) in nearly the same terms as by Dioscorides, and recommended “as doing good service in leprous and other obstinate cutaneous complaints.” Ἐχίνος, Echinus; the herb is austere, repellent, and desiccant. Of the Land Echinus, or _Hedgehog_, the flesh when strongly dried is discutient and desiccant; when taken in a draught, therefore, it is beneficial in elephantiasis, cachexia, and many other complaints. Its skin, when burnt, becomes more desiccant and discutient. It therefore cures alopecia when rubbed in with liquid pitch. Of the Sea Echinus, the edible part is diuretic, and agrees with the bowels. Its shell, when burnt, resembles that of the land echinus. * * * * *