(2023) 
till the prcfent danger was overpaffcd , and then from time to 
time we pump d a little more Air out of the Receiver, till we 
were weary , the withdrawing of a moderate quantity of Air 
at a time fufBcingj even at the latter end ^ to make the Bubbles 
not only copioufly, but very fwiftly afcend^^by a minute Watch) 
for above a quarter of an hour together. 
The little Inftrument 5 made ufc of about thefe tryals ^ being 
defigned to examine, among other things, the quantity of Bub. 
bles lurking in feveral Liquors , is to be applyed to Spirit of 
Wine and ChymicalOyles^ that are more fubtil Liquors than Wine 
it felf And fome circumftances of our try als made us think , that 
it might be worth examining 5 what ^iad of fubftance may be 
obtained by this way of handling Aerial and Spirituous Corpuf- 
€l€s. But oftbe other ufes of pyr Inftruraent elfewhere^, 
The .VL Xhle. 
0ffome Thdnomena^ afforded rhy %\it\\' V\QiQs in an exhau- 
jied Receiver. 
Experiment the r« 
AN Oyfter being but into a very fmall Receiver, and kept in 
long enough to have fucceffively kill 'd thrpe or four Birds 
or Beafts> d^c. was not thereby kill'd .> nor, for ought we could 
perceive 5 confiderably difturb'd 5 pnly at each fuck we per- 
ceived, that the Air contain'd between the two Shells broke out 
at their Commifliire 5 as we concluded from the foam which at 
thofe times came forth all round that Commiflurc, About twen* 
ty four hours after, coming to fee in what condition this Oyfter 
was, I foundj that both this, and another that had been put at 
the fame time into the Receiver, were alive 3 but how long af- 
terwards they continued fo, I did not obferve* 
Experiment the 2* 
That fame day we put a pretty, large Craw-FiJIrmta a pretty 
large Receiver^ and found, that.though he had been injurd by 
a fall before he was brought thither , yet he feem'd not to be 
much incommoded by being included 5 till the Air was in great 
raeafure pump*dout, and then its former motion prefently cea- 
fcd, and he lay as dead 5 till, upon the letting in a little Air into 
the Receiver, hebegan fortvvith tomoveafrefli. And upon the 
withdrawing the Air again, he prefently , as before, became 
ffiovelefs». Having repeated this tryal two or three times , we 
took. 
