[115] _Aëtius_, Tetrab. II. serm. 4. ch. 16., Quandoquidem vero plurimi sunt qui illitionum usum aversantur, _maluntque adhibere emplastra_, utpote quae neque per sudores obtortos defluant, neque rarefacta etiam cutem circumtendant, annectam et horum aliquot apparatus. (However, inasmuch as there are many who are opposed to the use of salves, and prefer to apply plasters, on the ground that the latter are not liable to run through sweatings that are superinduced nor yet to liquify and spread on the skin, I will add some forms of these plasters). [116] _Plinius Valerianus_, De re medica bk. II. 56., Graeco nomine lichenes appellatur, quod vulgo mentagram appellant, et est vitium, quod per totam faciem solet serpere, oculis tantum immunibus; descendit vero in collum et pectus ac manus, foedat cutem; eosque, qui sic vexantur, osculari non convenit, quoniam contactus eorum perniciosus fore perhibetur. (In Greek nomenclature the name _lichenes_ is given to what the common people call _mentagra_, and is a malady that as a rule creeps over the whole face, the eyes alone being unaffected. But it also goes down to the neck and breast and hands, disfiguring the skin. It is not right for those so afflicted to kiss, for their contact is said to be injurious.)—_Marcellus Empiricus_, De med. liber ch. 19., Ad lichenem sive mentagram, quod vitium neglectum solet per totam faciem et per totum corpus serpere et plures homines inquinare. Nam Soranus medicus quondam ducentis hominibus hoc morbo laborantibus curandis in Aquitania se locavit. (For _lichen_ or _mentagra_, a malady which if neglected will creep over the whole face and the whole body, and disfigures many men. Indeed Soranus a Physician at one time sold his professional services in Aquitania to two hundred patients suffering from this disease).