Terra, _Earth_; all kinds are desiccants; that which is unmixed with any other substance is also free of pungency; but if any fiery quality is mixed with it, it lays the same aside when washed. The fatty part, then, of wrought earth is an useful application to all organs that require drying; they use therefore the clay of _Egyptian earth_ to dropsical and splenitic affections, and to soft swellings, with manifest advantage. Of medicinal earths, the _Lemnia rubrica_, or _Sigillum_, as it is called, in addition to its being moderately desiccative and astringent, proves an antidote to deleterious medicines, cures malignant ulcers with wine or vinegar, stops all kinds of hemorrhage, and removes dysentery and spreading ulcers of the intestines, the gut being first washed out by an injection of honied water, and then of brine. The _Rubrica Sinopica_, or _vermilion_, being stronger than the Lemnian, is used as an ingredient in plasters, and when drunk it kills worms. The _Samian_ is much more emollient than the Lemnian, as being glutinous and viscid. It is to be used then in all cases in which emollients are indicated; but it also cures spitting of blood from whatever part it proceed. The _Selenusian_ and the _Chian_ are more detergent, and are therefore used by some women in the cleansing applications to their faces. It also produces the incarnation and cicatrization of ulcers, more especially of burns. The unwashed _Cimolian_ is possessed of mixed powers, being refrigerant and discutient; but the washed is more cooling, and cures burns with oxycrate. The _Terra Ampelitis_ (it is the kind of earth which is rubbed upon vines to destroy the worms which breed in them) is powerfully desiccant and discutient, but not without pungency. The _Cretan_ is full of air and detergent, without pungency. The _Eretrian_ is decidedly astringent, but when burnt and washed it is desiccant without pungency; but the cineritious is preferable. The _Pnigitis_ has powers resembling the Cimolian, but is black. The _Armenian_, called also _Bole_, is powerfully desiccative, and therefore agrees excellently with dysenteric cases, fluxes of the belly, spitting of blood, consumption, dyspnœa from humidity, humid ulcers, and pestilential affections. It is drunk with a thin diluted wine, or, if fever be present, with water. The _Alanabolus_ is possessed of similar powers to the Armenian. _Ochre_ is discutient and septic in its powers; it therefore restrains the fungous flesh of ulcers, and fills hollow ones when mixed with cerate. * * * * *