14* Tk prognoftkk. Signs made appear from the Tables of Mortality hereunto annexed. THE Caufe of a P eft Hence being re- moved, Jpent, or extinguijhed, its Ejfetfs immediately ceafe. A S Fire goes out when its Fuel is wanting, or fpent, fo the peftilential Viru- lence continually wants fomewhat to keep it up, and no longer than it is fupplied with that necelTary Pabulum will it laft: Although I acknowledge that fometimes thefe fatal Sparks will lie as it were fmo- thered in their own Ruins, for lome Time, , and after a certain Interval break out again into its fir ft Fury, from the original Caufe that as yet hath never been extinsuiihed. And hence perhaps fome may be led into an Error about the Plague's being co-aeval with the World, and its continual Subfiftance in one Place or another, as external Cir- cumftances favour its Propagation or Hin- drance ^ for the very Iricreafe of the pe~ ftiiential Seminium, after every Interval of Recefs, plainly mews it to take frefliRoot; and upon the total Extirpation of it, I can- not fee how the fame can appear again : And
