[186] _Galen_, De febr. diff., bk. I., edit. Kühn Vol. VII. 284 sqq., δριμὺ δ’ ἀποῤῥοῖ καὶ δακνῶδες περίττωμα τοῖς ἤτοι κακοχυμοτέροις, ἢ ἐδέσματα μοχθηρὰ προσφερομένοις τοιαῦτα γοῦν ἐδέσματα καὶ νῦν ἀναγκασθέντες ἐσθίειν πολλοὶ διὰ λιμὸν οἱ μὲν ἀπέθανον ἀπὸ σηπεδονωδῶν τε καὶ λοιμωδῶν πυρετῶν, _οἱ δὲ ἐξανθήμασιν ἑάλωσαν ψωρώδεσι τε καὶ λεπρώδεσιν_. (But there discharges an acrid and biting excretion, and this in patients already only too much afflicted with evil humours, or else food becomes noxious to them, though normally able to tolerate such food; and now being forced to eat, many died in consequence of the plague, some from putrefying and pestilential fevers, while others again _were attacked by exanthematic eruptions of the psora and lepra types_). [187] Martial, Bk. VI. Epigr. 37., O quanta _scabie_ miser laborat! Culum non habet, est tamen cinaedus. (How sad a scurvy (_scabies_) does the wretch groan under! Bottom all gone; and yet he is a cinaedus!) Bk. XI. Epigr. 8., Penelopae licet esse tibi sub principe Nerva Sed prohibet _scabies_ ingeniumque vetus. (You may be a Penelope under Nerva as Emperor; only that _scurvy_ hinders you and inveterate viciousness). The _mala scabies_ (horrid scurvy) from _Horace_, Ars Poet. 453., is familiar; as well as the statement of _Justin_ (Hist. XXXVI. 2.) to the effect that the Jews were driven out of Egypt on account of Scabies and Vitiligo (Tetter), that the Egyptians might not be infected by them. Comp. _Michaelis_, “Mosaisches Recht”, (Mosaic Law) IV. 209. The infectious nature of psora is declared also by _Aristotle_, Problem. VII. 8. _Galen_, De puls. diff., IV. 1. The transition of _mentagra_ into _psora_ has been already mentioned.