( 1 * 3 ) 
rather greater, than at all Me, than before it was put Into the 
Receiver, But partly for greater certainty, and partly to enj oy fa 
delightful a fpedacle, we repeated the Experiment with the like 
fuccefs as at firft, Wherefore being defirous to fee howfoon 
thefe changes might be produced, we included the Wood in a 
very f mall Receiver of clear glafs, and found. That in this the 
Light would begin to grow taint at the fee ond % or arleaftacthe 
third Exfudion of the Air^ and at the fixtb or feventh would 
quite difappear. And we found by a Minute- watch, that the 
lending the Candles out of the room, the pumping out the Air 
till the Wood would fhine no more, the rcr admitting of the Ale 
(upon which it would in a trice recover its Light) and the fend * 
ing in for the Candles to confult the Watch , did in all take up but 
j/.v Minutes. 
Experiment I'll. 
T He forementioned Experiment , without taking notice 
how long it lifted, being reiterated twice in this new Re- 
ceiver, we had a defire to fee, whether this Luminoufne& of our 
Wood would more refemble a Coal, of the Lifecf a perfeSl Anl- 
ma h being totally and finally excmguifhr, in cafe the Aie were 
kept from it a few minutes, or eife the Life of Infers , which in 
our exhaufted Received had obferved to lofe all appearance of its 
continuing, and that for a much longer time than a few minutes, 
snd yet afterwards, upon the reftitution of Air, to recover pre* 
fently, and fhew manifeft figns of Life? Wherefore having 
exhaufted the Receiver , till the "Wood quite dif-appeared, we 
flayed fomewhat above a quarter of an hour in the dark, without 
perceiving, that the Wood had regained any thing of Light, 
though about the end of this time we made the place about it as 
dirk as we couidjandfhen it being too late at night to pro trad the 
Experiment, we let in the ^ir, upon whofe admiffion the Wood 
ptefently recovered Light enough to be confpicuous at a di- 
liaiice » though it feemed to me fomewhat lefs vivid than before : 
which yet may be either a weaknefs in my fight, or an efftd of 
the fteamsof the Cement, unfriendly perhaps to the Luminoufnefs 
of the Wood. ' 
/:■ to which we this night added thefe 
€ /hfervations ; ~ . , ■ J ' 
Ppp 2 We 
