the Air was put in Motion, and confcquently the EfflnvU- 
of Glafs were fo too. And at another time, when 1 have 
fuddcnly clapt my fpread Hands on the Upper and Lower 
Parts ot the Globe, there has been inch a Violent Agita- 
tion of the Threads within, as was very furprifing, and 
continu’d fo for fome time. But how to Account for 
fuch Unccmmon ?h£mmefia feemsvery difficult. Yet give 
me leave to make fome Obfervations on former Experi- 
ments of the like kind, which with Remarks on fome others 
lately made, may in fome meafure folve that difficulty. 
The Experiment where the diredfed Threads on the out- 
fide of the Glafs would fly the Approach of any thing 
held near them, feems to me, that the Parts of the £/- 
flnvia are ft iff, and continu’d, fliat when any part of them 
are puftit, all that are in the fame Line fuffer the fame 
Diforder. So even in this Experiment (I have juft now 
been relating) allowing a (ontinmm of Parts, (as I fee 
no rcafon to the contrary) the bfflhvtawithm^ and thofe 
withc'ut' are all of a Piece, ("for they are both begot by 
the f me Attrition) that when the Fffiuv/a are puffit, or 
difturb’d without, the Effluvia within, m the fame dire- 
dion are fo too, and confcquently the Threads which are 
upheld and dirededby ’em. The Effluvia which are pro- 
vok’d from the Glafs, feem to be, and are nothing elfe 
but part of the fame Body exerted from it by rubbings 
therefore (I rhink) can be no Impediment to the Motion 
of its own Effluvia, for ntherwife I do not fee how the 
Effluvia w'ithm, can be produc’d by an Attrition without. 
And for a farther Confirmation that the Effluvia of Glafs 
ad not but in d. Continuum of their Parts, take the follow-* 
ing Experiments. 
E X P E 
V 
