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 of the late <PeJtilence. 101 agreement in Figure, irritates Nature, always ready in her own Prefervation to expel the Enemy :, but when her Exertions are flow, or imperfect, or quite languid, fuch a Depu- ration is not obtained*, but upon a Remiilion of the Conflict, there is Space given for In- terval -, and this indeed happens, when the Nature and peculiar Figures of the noxious Particles are fuch, as may in the fir ft Strug- gle be broke and fubdued, but after fome Truce infinuates its Virulence further into the Habit, and imprints upon every Part the true Chara&erifticks of a fatal Peftilence. B U T the Spirits are at continual Strife, to fubdue and throw out the Euemy, although their Eiforts are not always fuccefsful *, to difpatch this Matter therefore in one Word, as the Ailimulation and perfect. Mixture of the heterogeneous Particles procures a Motion regular and confor- mable to the Blood, fo from an Inequa- lity and difproportionate Mixture, arifes an irregular Circulation and Fermentation • fo that the Reaibn for that Uncertainty in thefe Fevers, and their irregula^Returns and Exacerbations, is to be -^ght for in the Fluids and their circulating VefTels, and not from any Corruption, or Degree qf . J|^3 Putre- ^/