A dissertation on the properties and efficacy of the Lisbon diet-drink in the cure of the venereal disease, the scurvy, and other disorders arising from an impure state of the Blood : together with reflections on the use and abuse of mercury, and the manner of its action on the solids and fluids : to which is added, such remarkable cases is have been successfully treated by a course of the diet-drink : and also, a supplement, wherein the true difference between venereal symptoms, and those often mistaken for such by the patient, &c. clearly pointed out, so as more easily to be distinguished from each other