Guido de Cauliaco’s account of the disease is also nearly the same as that of Alsaharavius. He states decidedly that the disease is contagious, and recommends bleeding, purging, the actual cautery, the theriac of vipers. (vi, 1.) Rogerius remarks that the disease is contracted _per coitum_. (i, 15.) And here, by the way, we may be permitted to state that we have long been convinced that the syphilis of modern times is a modified form of the ancient elephantiasis. This opinion is maintained by several of the writers of the Aphrodisiacus, and also by the learned Sprengel, who gives a very interesting disquisition on Syphilis in his ‘History of Medicine.’ It appears that the disease in its ancient form is still prevalent in certain parts of the world; as, for example, in the Sardinian States, where it is still looked upon as being both contagious and hereditary. It is also endemic in Norway: nay, it is reported to have broken forth with all its ancient character in the province of New Brunswick. In the East, elephantiasis and leontiasis are still considered as aggravated forms of leprosy. (See Heber’s Travels, ii, 50; and Niebuhr’s Travels, xxvii, 11.) We may be allowed to add, in conclusion, that a great mass of misapprehension has prevailed in modern times regarding the elephantiasis of the Greeks and Arabians. We trust the above sketch will remove the difficulties which formerly beset this subject. SECT. II.—ON LEPROSY AND PSORA. Both these affections consist of an asperity of the skin, with pruritus or wasting of the body, having their origin from a melancholic humour. But leprosy spreads over the skin more deeply in a circular form, throwing out scales which resemble those of fishes. But psora is more superficial and variously figured, and throws out furfuraceous bodies. In these cases we must premise venesection when the body appears more than usually plethoric; but, if not, we must by all means purge with those things which evacuate black bile. Externally we may use in common either of the hellebores; and have washed lime dried, and, when going to use it, we may dilute it in water until it attain the thickness of the wrestler’s sordes, and anoint.—_Another_: Of sage, of the tears of Æthiopian olive, of each, dr. viij; of the bark of capper’s root, of gum, of each, dr. xiij; anoint with vinegar, in the sun. Anemone, when applied, and the root of the white vine particularly, remove psora. But the following are compound remedies: Of the flour of darnel, one chœnix; of the white cardamom, dr. iv; of the scum of natron, dr. j; of copperas, dr. viij; of the middle roots of asphodel, dr. iv; having triturated them in vinegar, and made of the thickness of a cerate, anoint, having first applied nitre to the part; and having removed it, (which do about the third day,) and washed with cold water, again anoint.—_Another_: Of the juice of kings’ spears’ roots, oz. vj; of sulphur vivum, of manna, of each, dr. x; of natron, dr.