At the time when syphilis was causing excitement through Europe sarsaparilla and guaiacum were much praised as sudorifics, and wonderful cures of syphilis by them were reported. The poet and reformer Ulrich von Hutten wrote a book, De Morbo Gallico, in which he related his own years of suffering from the disease, and his complete cure by means of guaiacum in 30 days. “You may swallow these woods up to the tomb,” said Paracelsus. He had not much more respect for fumigations with cinnabar, which he regarded as a quack treatment by which it was impossible to measure the dose of the mercury, though he recognised that it cured sometimes. Red precipitate with theriacum made into pills with cherry juice was his favourite remedy, and was one of his laudanums. His Catholicon, or universal panacea, was a preparation of gold and corrosive sublimate, which was largely used by his followers under the name of Aurum Vitæ. Corrosive sublimate was the great quack remedy for syphilis for more than a century, and the so-called vegetable remedies, syrups and decoctions of guaiacum, sarsaparilla, and sassafras, maintained their reputation largely in consequence of the perchloride of mercury, which was so often added to them. Aqua Phagadænica, 1 drachm of corrosive sublimate in 1 pint of lime water, was a very noted lotion for venereal ulcers. It began from a formula by Jean Fernel, a Paris medical professor and Galenist (1497-1558), who dissolved 6 grains of sublimate in 3 oz. of plaintain water. This was known as the Eau Divine de Fernel. By the time when Moses Charas published his Pharmacopœia this lotion had acquired the name by which it was so long known, and was made from ½ oz. of sublimate in 3 lb. of lime water, and ½ lb. of spirit of wine. It yielded a precipitate which varied in colour from yellow to red.