BECAUSE former Writers on these Occasions have given _Formulæ_ of things of this kind, much more prolix and inelegant than the present Practice is accustomed to, it may not perhaps be unacceptable to give two or three Examples more conformable to the latter. But because I judge such general Prescriptions rather of Prejudice than Service, when they come hastily and inadvertently to be required by the common People, I cannot but think it much better to leave such to be ordered and regulated according to particular Persons Constitutions and Exigencies. AS to those preservative Means which a Government only have the Power to provide, they must likewise be left to those who have that Power, but, with due Submission to such, it is conceived that removing infected Persons is a much easier and safer Care, than shutting them up in great Towns: And it was certainly the greatest Error committed in the late _Plague_ here, as our Author above grievously complains, to confine the sick and well together. IT seems a Point yet in Dispute, whether great Fires at such a Time are of Service or hurtful, which to me is somewhat wonderful, because whosoever considers the Necessity for Air in Respiration, and by what Quality it becomes of such real Service to the Preservation of Life, cannot think such Fires proper, because they destroy that very Property in the Air, which is demonstrable by innumerable Experiments. As to the Dissipation indeed of pestilential Vapours, or their Destruction in any Manner, they undoubtedly may do Service, but then that ought to be done at vast Distances only from where People inhabit. And what Fires common Occasions require at such Times, are rather to be made with such Substances as abound with, and yield a nitrous Salt, because that seems to be the chief Support of the vital Property in the Air, and such are our common Coals; for every one knows how much more all Wood-Fires are suffocating, and give a Languor, and Flatness to the Spirits.