c 4 i>> ) 
b'Wge 
BffeBs of the Effluvia 0 / Qlajs 0 pro- 
duce able on the Motion and Attrition 
of it. Ey Mr. Fr. Hauksbee, F.^.6. 
Experiment I. 
Containing farther ObferVadons on the Attrition of Glafs. 
I N the late Experiments, which feem fomething to Illu- 
ftrate Attradion or Eledricity, by the Ends of the fur- 
fonnding Threads pointing to the Axis of the Affricated 
Glafs, there is fomething farther very Remarkable, and 
worthy Confideration 5 which is, That after the Attrition 
of the Glafs has been a little while continu’d, and the Ef- 
fluvia laid hold on the hairy or woolly Threads, (for I 
made ufe of fuch as we call Crewel,) that then, not- 
withftanding the rubbing was ceas’d, and the Glafs moti- 
■onlefs, yet all the Threads would continue their direded 
Pofture for four or five Minutes, and fometimcs longer, 
before they could difengage themfelves from the Attrad- 
| n .f? or Eledrieal Effluvia. Moreover, if one’s Finger (or 
any thing elfe is as well, for I have try’d divers things,) 
be approach’d near the pointing ends of the Threads, 
while* the Effluvia ad with fo much vigour, as to fuftaia 
theta direded ; that then, 1 fay, they would dee and avoid 
■a touch from it 5 as if the North Pole of the Magnet was 
apply’d towards the South Point of a Needle : And at the 
lame’ time, if the Finger is held near, at about an Inch 
feam the end of the aforefaid Thread, it will there feem 
40 
