An analytical inquiry into the specifick property of mercury relating to the cure of venereal diseases, when well apply'd and skilfully managed. Wherein is Explained, I. The Nature, Action, Effects, Quantity, and Choice of Preparations. II. The necessary Cautions before the Use of the Remedy, and after it. III. The true Generation and Nature of the Virus. IV. The Variety of its Symptoms in different Climates: In Particular, the Reason, why most Part of the Spaniards are born with the Pox, or the King's-Evil; and why this Distemper rages more in London, than in other Parts of Europe. V. The ill Consequences of a bad Practice; and, what Method is thought best for a thorough Cure. VI. An Answer is given to several Objections, confirm'd by Experience of Cures perform'd in London, in the Presence of Sir Hans Sloane, Dr. Hollings, Dr. Stuart, &c. VII. Dr. Chicanneau's Method of Curing this Distemper without Salivation is vindicated. By Vincent Brest, Surgeon, and Cupper to His Royal Highness Frederick Prince of Wales, in Panton stree[t]