Schistos and hæmatites2716 have a certain affinity between them. The latter is found in mines, and, when burnt, has just the colour2717 of minium.2718 It is calcined in the same manner as Phrygian stone, but is not quenched in wine. Adulterations of it are detected by the appearance of red veins in it, and by its comparative friability. It is marvellously useful as an application for bloodshot eyes, and, taken internally, it acts as a check upon female discharges. To patients vomiting blood, it is administered in combination with pomegranate-juice. It is very efficacious also for affections of the bladder; and it is taken with wine for the cure of wounds inflicted by serpents.

In all those cases the stone called “schistos”2719 is efficacious, though not in so high a degree as the other; the most serviceable being that which resembles saffron in colour. Applied with woman’s milk, it is particularly useful for arresting discharges from the corners of the eyes,2720 and it is also very serviceable for reducing procidence of those organs. Such, at least, is the opinion of the authors who have most recently written on the subject.