COMMENTARY. The officinal cardamom of the present time has now got the scientific name of _Elettaria Cardamomum_, and as far as we can see there is no reason to doubt its being identical with the cardamomum of the ancients. There are, however, several varieties of the cardamom which are not satisfactorily defined, any more than the four species mentioned by Pliny. (H. N. xii, 29.) See Ainslie (Mat. Ind. 32), and Pereira (Mat. Med. 694.) Dioscorides recommends it for various purposes, both externally and internally; for epilepsy, coughs, ischiatic disease, nephritis, and as an alexipharmic and lithontriptic medicine. (i, 5.) Galen is more guarded in enumerating its virtues, and all the other Greek authorities follow him. The Arabians rather imitate Dioscorides. See Avicenna (ii, 2, 156), and Serapion (c. 64.) One of Serapion’s Arabian authorities, Isaac eben Amram, describes two species, the greater and the lesser, a distinction still recognized. We need scarcely add that it is well known at the present day, and is used for various purposes both in this country and in the East. Καρὶς, Squilla, _a Legless Lobster_, when triturated and drunk with the root of bryony it kills lumbrici. * * * * * COMMENTARY. The squilla belongs to the order of μαλακόστρακα. (See Book I, 91.) The present article we suppose is the _Cancer Squilla_, L. It is treated of very cursorily by the other authorities. Καρκίνος, Cancer, _Crab_; of the ashes of burnt crabs, that of river-crabs is equally desiccative with those of the sea urchins and cockles. By the peculiarity of its whole substance it proves wonderfully efficacious when applied to persons bitten by mad dogs, as mentioned in another place. The ashes of the sea-crabs being extremely desiccative, do not indeed agree with them, but rather relieve those who stand in need of desiccative remedies. The river-crab when pulverised and applied, ejects thorns and the points of darts. * * * * * COMMENTARY. The _Cancer Pagurus_, a large edible crab, would appear to be the sea animal treated of under this head. The river-crab, we suppose, is the _Astacus fluviatilis_, or crawfish. Dioscorides recommends the ashes of the river-crab most especially in hydrophobia, and as an application to fissures in the feet and anus, chilblains, and cancers, and also as an antidote to the bites of venomous animals. Galen also gives an interesting account of the use of them in hydrophobia, and Serapion repeats Galen’s account of them. See further, Book V, 3, of this work. Galen speaks with great confidence of their efficacy in this case, indeed he affirms that he had never known them fail when they had got a fair trial. The other authorities supply no additional information of interest under this head. See Avicenna (ii, 2, 147), Rhases (Cont. l. ult. iii, 42.) These two agree that the flesh of the river-crab with the milk of asses is beneficial in phthisis. Κάρον,