Stimmi is possessed of certain astringent and refrigerative properties, its principal use, in medicine, being for the eyes. Hence it is that most persons call it “platyophthalmon,”[978] it being extensively employed in the calliblepharic[979] preparations of females, for the purpose of dilating the eyes. It acts also as a check upon fluxes of the eyes and ulcerations of those organs; being used, as a powder, with pounded frankincense and gum. It has the property, too, of arresting discharges of blood from the brain; and, sprinkled in the form of a powder, it is extremely efficacious for the cure of recent wounds and bites of dogs which have been some time inflicted. For the cure of burns it is remarkably good, mixed with grease, litharge,[980] ceruse, and wax. The method of preparing it, is to burn it, enclosed in a coat of cow-dung, in a furnace; which done, it is quenched with woman’s milk, and pounded with rain-water in a mortar.[981] While this is doing, the thick and turbid part is poured off from time to time into a copper vessel, and purified with nitre.[982] The lees of it, which are rejected, are recognized by their being full of lead and falling to the bottom. The vessel into which the turbid part has been poured off, is then covered with a linen cloth and left untouched for a night; the portion that lies upon the surface being poured off the following day, or else removed with a sponge. The part that has fallen to the bottom of the vessel is regarded as the choicest[983] part, and is left, covered with a linen cloth, to dry in the sun, but not to become parched. This done, it is again pounded in a mortar, and then divided into tablets. But the main thing of all is, to observe such a degree of nicety in heating it, as not to let it become lead.[984] Some persons, when preparing it on the fire, use grease[985] instead of dung. Others, again, bruise it in water and then pass it through a triple strainer of linen cloth; after which, they reject the lees, and pour off the remainder of the liquid, collecting all that is deposited at the bottom, and using it as an ingredient in plasters and eye-salves. CHAP. 35.—THE SCORIA OF SILVER. SIX REMEDIES DERIVED FROM IT. The scoria of silver is called by the Greeks “helcysma.”[986] It has certain restringent and refrigerative effects upon bodies, and, like molybdæna, of which we shall make further mention when speaking[987] of lead, is used as an ingredient in making plasters, those more particularly which are to promote the cicatrization of wounds. It is employed also for the cure of tenesmus and dysentery, being injected in the form of a clyster with myrtle-oil. It forms an ingredient, too, in the medicaments known as “liparæ,”[988] for the removal of fleshy excrescences in sores, ulcerations arising from chafing, or running ulcers on the head.