Commentary. Though there can be no doubt that this term is generally used by the Greek classical authors to signify bronze, or a combination of copper and tin in the proportion of from 2 to 14 per cent. of the latter, it is also certain that it was frequently applied to native copper, as it is in general by the authorities on the Materia Medica. The ancients, it may be proper to remark cursorily in this place, were acquainted with the formation of brass, which they made by compounding together copper and cadmia. See Watson’s ‘Chemical Essays,’ and Beckmann’s ‘History of Inventions.’ Brass was their aurichalcum or orichalcum. The Æs ustum, according to Geoffroy, “is copper reduced to a calx or crocus, either by itself or mixed with sulphur or salt, by a long calcination in a reverberatory furnace.” “The Squama æris, or flake of copper,” he adds, “is little different from the Æs ustum, being only the particles of burnt copper which fly off when it is hammered.” He says of the Flos æris, “it is nothing but copper reduced to small grains like millet seed, which is done by pouring cold water upon melting copper, which thereupon immediately flies every way into grains.” In short it was fine granulated copper. These preparations of copper are described by all the ancient authorities. See in particular Dioscorides (v, 87, 88), who describes the process of making the flos æris very minutely. He recommends it as a detergent and caustic medicine for various purposes, such as removing dimness of the cornea, wasting polypi in the nostrils, and protuberances about the anus; and also for the cure of deafness when blown into the ear with a syringe in the form of a powder, and in complaints of the gums and tonsils. He also says that given to the amount of three oboli it evacuates thick humours. He also describes several processes for burning the copper, and recommends the æs ustum as a cleansing and detergent medicine for various ulcers, especially those of the eye, and also as an emetic when taken in a draught with hydromel, or in a linctus with honey. None of the other Greek authorities treat so fully of these preparations as Dioscorides. Celsus prescribes them frequently as caustic and corrosive substances. (v, 6, 7, et pluries.) The Arabians used these articles not only as external applications, but as emetics and purgatives. See Avicenna (ii, 2, 231); Serapion (c. 414); Rhases (Cont. l. ult. iii, 48); Averrhoes (Collig. v, 43); Haly Abbas (Pract. ii, 48); Ebn Baithar (ii, 551.) The flowers of copper, and burnt or calcined copper, are noticed in the works of all our earlier writers on medicine, and recommended to be administered both internally and externally. See Platearius (De Simpl. Med.) The process of preparing calcined copper is minutely described by Moses Charras in his ‘Royal Pharmacopœia,’ published at Paris in 1676. They are briefly described by Dr. Hill, who says of the æs ustum that “it was much used externally by the ancients.” (Mat. Med. 32.) Neither of these preparations of copper occurs in the Complete English Dispensatory of Quincy, published in 1763. They are omitted also in Pemberton’s London Dispensatory, published in 1746. They would appear, however, to have been longer retained in use by the Continental physicians, since a formula for preparing the Calx æris is given in Crantz’s Mat. Med. (ii, 91. Vienna, 1765.) He says that the Flos æris, and Squama æris, were preparations not in use. Rutty ranks them among the obsolete medicines of the ancients. A formula for Æs ustum is given in Gray’s Suppl. to Pharmacop. (p. 242.) It is the same as that of Dioscorides. (v, 37.)
Χαμάιδρυς,
Chamædrys, Germander, is heating and drying in the third degree. It therefore melts down enlarged spleens, proves diuretic and emmenagogue, and removes visceral obstructions.
Commentary. It clearly is the Teucrium Chamædrys L. Theophrastus says that its fruit purges bile. (H. P. ix, 10.) Dioscorides commends it in spasms, scirrhous spleen, dysuria, and incipient dropsy; and as an emmenagogue; and, by the way, Dr. Hill confirms this account of it. Galen and all the other authorities treat of it in nearly the same terms. We have not been able to find it in the works of Hippocrates. For the Arabians, see particularly Serapion (c. 180); Avicenna (ii, 2, 132); Rhases (Cont. l. ult. i, 152.) One of Serapion’s Arabian authorities recommends the syrup in chronic coughs, dyspepsia, and incipient dropsies, and the decoction in black jaundice. Avicenna joins both Dioscorides and Serapion in regard to the virtues which they ascribe to it. Whether or not this be the “trixago” of Celsus (iv, 6) has never been satisfactorily determined. The Arabian translators adopt this name. It has still the reputation of being a pectoral medicine. Lindley (Veg. Kingd. 661.)
Χαμαίκισσος,
Hedera, Ground Ivy; the flower being considerably bitter, removes obstructions of the liver. It is also given in ischiatic diseases.
Commentary. We see no good reason for disputing its identity with Glechoma hederaceum, or Ground Ivy, which we believe to have been introduced into this country by the Romans for the Chamæcissos. Dioscorides gives it nearly the same characters as our author, that is to say, he recommends it in sciatica and jaundice. (iv, 124.) Galen and the other Greek authorities treat of it in nearly the same terms as our author. The Arabians notice it under the same head with the other species of ivy. See Serapion (De Simpl. 41); Avicenna (ii, 2, 169); Rhases (Contin. 190.) The ground-ivy maintained a place in the Dispensatory with a high reputation as a hepatic, splenitic, diuretic, and nephritic medicine in the days of Quincy. (117.) In the modern Greek Pharmacopœia the glechoma hederaceum stands for the χαμαίκισσος. (75.)
Χαμαικέρασος. This occurs in the “Euporiston” generally ascribed to Dioscorides. It is referred by Sprengel to the Convallaria majalis, or Lily of the valley.