42 The Caufes and Cure
- very diHant Countries, lying a long Time
c infuch Manner concealed, and then fudden- c y breaking out-, with many other Cir- c cumftances of like Nature. € BUT if thefe fubtile and aftive Parti - c cles be of that Nature, that they can pe~ c netrate the Pores of other Animals, and 6 occafion a like Coagulation of their Bloody c not only Men, but Brutes alfo, will be c feizedwith d.Pefiilence but this does not c always very neceffarily happen ; becaufe 4 the Blood of Animals is different from hu-
- mane Blood, fo that although thefe Par-
c tides are fuppofed to get into it, it does 1 not therefore neceiTarily follow that they c muft vitiate it, any more than will jtqua c Regla diilbive all kinds of Metals^ but c yet Brutes oi' all kinds, or lome of them € only, will be feized equally with Men, c whea this fubtile and a£live Ferment,
- which .penetrates the Surface, is of that
c Nature, as will taint the Blood of other
- Animals with thole pfiilential Requisites.
c AS this kind of Contagion then can c eafily proceed from an infe&ed Perfbif c at a great Difhince, as often as the noxi- c ous Particles can reach another Perfon,
- and
