Dissertation on the properties and efficacy of Lisbon diet-drink, [electronic resource] : and its extract, in the cure of venereal disease & scurvy; rheumatic gout, the scrophula, consumption, and other Disorders proceeding from an impure State of the Blood; especially those of the Skin and Glands. With Select Cases, confirming the Success, and restorative Power of that Medicine, in consumptive Habits, or broken Constitutions. The Extract may be taken in any Climate, 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 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.