[ 44 ] 
E ffed was faid to be brought about by the late Dtv 
c DeJaguliers and others, having no other Conception 
of its Manner of ading than as Rays from a Centre, 
which indeed is confirmed by feveral Experiments : 
One of which, very eafy to be tried, is, that if a 
fingle downy Seed of Cotton-grafs is dropped from 
a Man's Hand, and in its Fall comes within the At- 
tradion of the rubbed Tube 5 the Down of this Seed* 
which before feemed to flick together, feparates, and 
forms Rays round the Centre of the Seed : Or if yon 
fatten many of thefe Seeds, with Mucilage of Gum- 
Arabic, round a Bit of Stick, the Down of them 
when eledrified, which otherwife hangs from the 
Stick, is raifed up, and forms a circular Appearance 
round the Stick, As thefe light Bodies are direded 
in their Motions only by the Force imprefled upon 
them, and as their Appearance is conftantly radiatim y 
fuch Appearance by no means fquares with our Idea 
of a Vortex ^ 
Some have imagined a Polarity alfo, when they have 
obfcrved one End of an excited glafs Tube repel light 
Subftances, and the other attract them 5 but this is a De- 
ception, arifing from the whole Length of the Tube not 
being excited, but only fuch Part of it as has been rubb'd* 
fo that as much of the Tube as is held in the Hand 
remains in an unexcited State, and permits light Sub- 
llances to lie ftili thereon, though forcibly repell'd at 
the other End. This attractive Power of Eledricky 
ads not only upon Non-eledrics, as Leaf-Gold, Sil- 
ver, Thread, and fuch-like, but alfo upon originally 
Eledrics, as Silk, dry Feathers, little Pieces of Glafs, 
and Refin : It attrads all Bodies, that arc not of the 
fame Standard of Electricity (if 1 may be allowed 
V the 
