Diseases, as is apparent from the Power of so fine a Body as the Air; and therefore we need not think it so strange, that a little matter should be able to give a good or bad turn. And if this will be allow’d to be good Reasoning; what can be so likely to obviate such Miscarriages, as a due application to that most moderate and easie Exercise, which I have apply’d to the Cure of this Distemper? That a mild Exercise will do something like this, may be learnt from the Effects of those which are more violent; we know very well what has follow’d upon going into the ~Bagnio~, after violent Exercises, the Blood of those Persons who have done so, has so been exalted in its Crasis, as to be upon that very account, fatally Preternatural; tho’ upon the first Thought, One would be apt to conclude, that such violent Perspirations should rather impoverish the Blood; but it is quite contrary, just as in Hot Climates, tho’ People Sweat profusely, yet they are rather the more Brisk and Lively for it. And thus Moderate Exercise, by Augmenting the Natural Heat of the Body, will enrich the Fluids, and by encreasing the Velocity of the Circulation, every the minutest Particle will be brought much oftner to the Test of the Strainers, than otherwise it would have been; so that both the Venous Fluid and the Spirits will after an Eminent Manner be exalted, and as it were Rectifi’d in the making. Therefore it cannot be a doubt, that these means may improve a Medicine, when it comes into the Blood, supply its deficiency, and remove the Inscrutable Inpediments in the Cure of so nice a Disease, as this I am speaking of._