gainft theingrefs of the Air^was laid afide in a quiet place^where 
it continued from lO or 1 1 a clock in the forenoon , till about ^ 
thenext morning ; and then my occafions calling me abroad, I 
looked upon the Snake 3 which, though he leemed to be dead^ 
and gave no figns of life upon the fhaking of the Receiver ^ yet 
upon holding the glafs a convenient diftance from a moderate 
fire, he did in a fhort time manifeft himfelf to be alive by feveral 
tokensj and even by putting forth his forked tongue* In that con- 
dition I left him, and, by realbn of feveral avocations, came not 
to look upon him again till the next day early in the after-noon ^ 
xit which time he was grown paft recovery, and his jaws, which 
were formerly fhut, gaped exceeding wide , as if they had been 
ftretched open by fome external violence. 
The nr. Title. 
Of the ?h£f2omena afforded hy Frogs in an Exhanfed Recei- 
ver. 
T He fame confiderations that induced me to ^ ^^^^ 
make tryals upon Vipers, did alfo invite me '^^'^'^ ^' 
to make feveral upon Frogs 3 the iuccels of fome of which 5 th^ 
following Notes will declare. j 
Experiment the i. 
We took a large lufty Frog^ and having included her in a fmaH 
Receiver, we drew out the Air, and left her not very much fwellA 
led, and able to move her throat from time to time, though n6t 
(b faft as when the freely breathed before the Exuftion of the Air. 
She continued alive about two hours, that we took notice of, 
fometimes removing from the one fide of the Receiver to the o- 
ther^ but (he fwelled more than before, and did not appear by 
any motion of her Throat or Thorax to exercife Refpiration , 
but her head was not very much fwelled, nor her mouth forced 
open. After £he had remained there fomewhat above three hours 
(for it was not ?i hours) perceiving no fign of life in her, we let 
in the Air upon her, with which the formerly tumid body flirunk 
very much, but feeraed not to have any other change wrought in 
it^ and though we took her out of the Receiver, yet in the free 
Air itfelf (be continued to appear ftark dead, Neverthelefs to fee 
the utmoft of the Experiment, having caufed her to be laid upon 
the grafsia a Garden all nighty the next morning we found her 
perfedly alive again. 
Experiment 
