Effluvia for ſome time afterwards, which will be longer or ſhorter according to the goodness of the Electric, and the degree of the Antecedent commotion: which joyn'd together may ſometimes make the effect conſiderable, inſomuch that in a warm day, about noon, I did with a certain body, not much, if at all, bigger than a Pen, but very vigorouſly attractive, move to and fro a Steel Needle freely poyſed, about three minutes (or the twentieth part of an hour) after I had left off rubbing the Attrahent.
8. That it may not ſeem impoſſible, that Electrical Effluvia ſhould be able to inſinuate themſelves into the pores of many other bodies, I ſhall adde, that I found them ſubtile enough to attract not onely Spirit of Wine, but that fluid aggregate of Corpuſcles we call Smoak. For having well lighted a Wax-taper, which I preferred to a common Candle to avoid the ſtink of the ſnuff, I blew out the flame; and, when the ſmoak
aſcend-
