of a (Peftikncc. 7 1 are duly elaborated, yet they may run into irregular Motions, and be the Occafion of many Difbrders : But what is moft to the Purpofe, they may fbmetimes alfo receive a Taint from external Impreffions. AND this Aptitude, or Propenfity of the Spirits to receive a pefKlential Taint, is rnanifeft from their fiery, or rather faline Nature ; and on Account of that Subtiity which they acquire thereby, do they more naturally attraft the contagious Aura y than Bodies more grofs and heavy : For as thefe Spirits, as before obferved, are nitrous, and inflammable, by their Similitude to a peftilential Aura, they not only are fitted to receive, but even attract it, and pro- voke it into Union as the Snuff of a Can- dle juft blown out, if it is not too far off, will, by an Affinity of Qualities, be fbon rekindled by another lighted one at' feme Diftance •, and how much foever the poi- ibnous Qualities of the peftilential Effluvia may be deftru£Hve to the animal Spirits, yet there is nothing more certain, than that their Taint is very eafily impreffed upon them. 1 1 F 4 AFTER.
