Etmuller recommends its use in expelling from the system the virus of “napelli” whatever that may have been. To cure the plague, the patient was to consume a quantity equal in size to a filbert. To frustrate the effects of incantation and witchcraft, it had to be drunk in oil. Used in the same manner, it was supposed to be of use in expelling worms: “De eadem mixtura, sed a stercore proprio,” etc., as already quoted. “De stercore humano, seu recente seu arido, adsunto ad expugnandum napelli virus, etiam a nostratibus commendato, de quo vid. Etmuller, etc.... In peste fuganda mane ad avellanas quantitatem devorando, ... ad morbos e fascino ex aceto propinato ... ad expellendos vermes eodem modo usurpato.” He alludes also to “Oletum” and the medicines made with it, as an ingredient; but says he will leave “Zibethum” and “Occidental Sulphur” to Paracelsus and the members of his school. He quotes Galen as recommending the drinking of the urine of a stout, healthy boy, as a preventive of the plague. “Urina pueri sani bibita ... preservans a peste,” quoting Galen, lib. x. “De Simp. Med. Fac.” A draught of her husband’s urine was of great assistance to a woman in uterine troubles: “Sic, in δυσοχία urinæ maritalis haustum concelebrant alii.” The urine of a chaste boy was much commended by many writers for internal use in dropsy, splenic inflammation, etc. “Sic urinam impolluti pueri quotidie potum, esse medicamentum laudabile et præsentaneum, ad lienis morbos et hydropem.” It would be useless to quote further in the words of the original. Lentilius goes on to say that a potion of one’s own urine was extolled in the treatment of the bites of snakes, wounds by deadly weapons, incipient dropsy and consumption. To drink one’s own urine for the space of three days was a sure cure for the yellow jaundice, also in preserving from the plague. But Von Helmont was of the opinion that in this last case its virtues were derived from the fact that it was a stimulant and served to keep up the spirits. By Etmuller, its use was strongly recommended in the treatment of the yellow jaundice, etc. (citing Etmuller). It was likewise highly extolled by Avicenna. We are next treated to a feast of big words, in which we learn that on account of its “nitrosity” and “volatility,” it was regarded as a “detersive,” and “penetrative,” while, on account of the alkali it contained, it was a neutralizer of the “fermenting acids,” and therefore applicable in cardialgia, anorexia, gout, toothache, colic, yellow jaundice, and intermittent fevers, either the urine “of the patient himself or that of a wine-drinking boy.” Boyle, the eminent philosopher, is quoted as saying that, in his opinion, the virtues of human urine, as a medicine, internally and externally, would require a volume by themselves. Boyle is also credited with having published a tract on this subject, in Leipzig, 1692, over the signature “B.”