COMMENTARY. Our modern herbalists are generally agreed that this is our maudlin, that is to say, the _Achillea Ageratum_, and the commentators on Mesue hold that it is his eupatorium. From Dioscorides down to modern times it has been commended as a diuretic medicine and an emollient of the uterus. Dioscorides, however, seems to say that it is heating, whereas Galen represents it as mildly anti-inflammatory. Perhaps there is some error in the text of the former. (iv, 59.) We do not find it in the works of Hippocrates, nor in those of Celsus, nor have we found it treated of by any of the Arabians, except Ebn Baithar, who merely gives extracts from Dioscorides and Galen (ii, 57.) Ἄγνος ἢ λύγος, Vitex, the _Chaste-tree_, heats and dries in the third rank. It consists of fine particles and dispels flatulence, whence it is believed to contribute to chastity, not only when eaten and drunk, but also when strewed under one. Its seed also, when drunk, acts as a deobstruent of the liver and spleen. When toasted it is less flatulent and more distributable. * * * * * COMMENTARY. The anaphrodisiacal powers of the _Vitex Agnus Castus_, or chaste-tree, are noticed by most of the medical authorities, and by Ælian (H. A. ix, 36.) But modern authorities question its claims to this character. Until lately, however, it held a place in our Pharmacopœia. Our author abridges Dioscorides (1, 134), and Galen (De Simpl.) For the Arabians, see particularly Avicenna (ii, 2, 43), and Rhases (Cont. l. ult. 31.) It occurs in the works of Hippocrates. Ἄγρωστις, Gramen, _Grass_, that of Parnassus is particularly useful; it is desiccative, moderately cooling, consists of fine particles, and is somewhat sour; it, therefore, is an agglutinant of bloody wounds, and its decoction is lithontriptic. * * * * * COMMENTARY. Dioscorides treats separately of the agrostis, which probably is our couch-grass, or _Triticum repens_, and of the agrostis in Parnasso, which has been very doubtfully referred to the _Parnassia palustris_. (iv, 30.) Our author would appear to have confounded these two articles together, and to have applied to the latter the characters which Dioscorides gives to the other. The modern herbalists agree with the ancients in commending the couch-grass as being diuretic and lithontriptic. None of the commentators or herbalists have given a satisfactory account of the esculent grass of Galen. The Arabians treat of the grasses very confusedly. See in particular Avicenna (ii, 2, 704); Rhases (Contin. l. ult. iii, 50); Serapion (c. 119.) In the modern Greek Pharmacopœia the _Triticum repens_ stands for the ἀ. (p. 72.) Apuleius says “Græci agrostem Latini gramen appellant.” Ἄνχουσαι,