[2713] See B. xxx. c. 5. According to Dalechamps, this was practised by placing the jet upon a hatchet at a red heat.
[2714] “Stone-macerater.” From τήκω, to “macerate,” and λιθὸς, “a stone.”
[2715] Dioscorides says that it was found in Cappadocia also; and both he and Galen attribute to it certain medicinal properties. It was used either for colouring, or else, like fuller’s earth, for taking the grease out of wool and cloth. Ajasson is inclined to think that it was either a volcanic scoria or a Peperite, also of volcanic origin.
[2716] Or “blood-stone,” mentioned already in Chapter [25] of this Book.
[2717] He is evidently speaking here of the red peroxide of iron.
[2718] Vermilion. See B. xxxiii. c. [37].
[2719] Literally, “split” stone; so called, probably, from its laminated form. Ajasson identifies it with yellow or brown iron ore, known in Mineralogy as Limonite, or Brown Hematite.
[2720] “Explendis oculorum lacunis.”
[2721] Mentioned in Chapter [25] of this Book.
[2722] Mentioned also in Chapter [25]. Probably Red peroxide of iron, in a massive form.