Dissertation on the properties and efficacy of the Lisbon diet-drink, [electronic resource] : and its extract, in the cure of the venereal disease, rheumatic gout, and scurvy; also of consumption, king's evil, and other Disorders proceeding from an impure State of the Blood, especially those of the Skin and Glands. With Additional Cases, confirming the Success and restorative Power of that Medicine, in consumptive Habits, or broken Constitutions, from a venereal, or serophulous Taint, the Aluse of Mercury, Intemperance, and other Causes. The Extract, in which are concentrated the whole Virtues of the Diet-Drink, may be taken at any Distance from London, according to the Directions and Regimen laid down in this Dissertation. To which is now added, A Supplement, containing plain Rules for distinguishing Venereal Symptoms from those often mistaken for such by the Patient. By John Leake, M. D. Of the Royal College of Physicians, London, and Physician to the Westminster Lying-in Hospital.