( l*8l. 7 
Air, as when the Experiment was made vwth-Qjiickfilver 
Vacuo and in the open Air, Certain Specks of Light were 
then feen upon the Fingers that toucht the Globe, but 
without any great Luftre, and it was veVy remarkable that 
while my hand continued upon the Glafs.and the Glafs in 
motion, if any perfon approach’d his Fingers towards any 
part of the Glafs in the fame Horizontal Plain with my 
Hand, yyithin an inch or thereabouts, a Light would ap- 
pear to flick to the Fingers, notwkhftanding they did not 
touch the Glafs, as was confirm’d by feveral then prefent. 
And my Neckcloth at the fame time, at an inch or 2 di- 
ftanr from it, appear’d of the colour of Fire, without any 
communication of Light from the Globe. Thus' much 
for the latter part of the firft Tryah The former part of 
both being alike, fave only that upon application of 
white Sheeps Leather in the latter, a very good Light was 
produc’d, during it was held to the Globe with the Wool 
fide next it $ but when the fame piece of Leather was 
turn’d with its other fide to the Globe, no Light did enfue, 
although continued for fome time - 3 but, fo ibon as it was 
chang’d again, the Light would appear as at firft, and fo 
upon feveral Repetitions the fatrie. As to the latter part 
of this Tryal, the Air was not let in all at once as before, 
but at feveraltimes, whereby the Modes of Light pro- 
duc’d in the different Mediums, were the better obfervable, 
although no very great Alteration happen’d either to its 
Colour ot Vigour, till fo con fidCr able a quantity, as more 
than a quarter part of the Globes natural concent of Air 
was let in -$ but fcmetimes before half the Air was fufFer’d 
to re-enter ("as near as l could guefV) it was not without 
fome pleafure, to behold, how’ the Light began to break in 
Branches from that fide the Globe touch’d by the hands, 
filling the whole body of it with v»ry odd Figures, and 
thefe Branches of Light, at the entrance of more Air, were 
become in more {lender Stems, ftriking then againft the 
©p’pofite fide of theGIafs^ anid' t’hence : reverberating again. 
