C 77 ) 
was fet to move within an Inch of touching the othm 
In theft Poftures the Machines were fet on work, and the 
naked Hand apply’d to the unexhausted Glafs, the Effluvia? 
of which in a little time reaching the exhaufted Glafs in 
Motion, immediately produc’d a Light on that part of it 
neared to the other, without the affiftance of a touch,* 
from any thing elfe to influence it. This Light is pretty 
■vigorous, and extends it felf fo far on the Globe as the 
Effluvia are capable to Say hold onY; It is nothing fo 
much of a Purple Colour, as when it is caus’d by the At- 
trition of the Hands 5 but will continue, or live on the 
Globe for half a Minute or more, after the Motion of the 
rubb’d Glafs is ceas’d : But if the rubb’d Glafs is kept in 
motion, and the other at reft, the Light inftantly dies, 
yet recovers again upon the firft motion given it. After 
this I took a long Glafs, which had lain by me exhaufted 
of its Air for more than fix Months : This Glafs having 
been rubb'd a little with my Hand to expel the Humidity . 
on its outfide, I held, it over the unexhaufkd Glafs in 
Motion, which at the fame time was rubb’d by my Hand % 
It would now and then (for it was not conftant) be very 
furprifing to fee what! large Flafhes of Light would be 
produc’d in the long Glafs without touching the Glafs in 
motion, nor was it felf either mov’d or provok’d by any 
immediate Attrition. 
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14 R, - V. Tabula 
