HL = CONFINED IN’STAGNANT AiR. gt 
~ ed two days ; that in the fecond died in three days 
-and feventeen hours ; and that in the third, died 
* in three days and a half. This demonftrates the 
influence of number in accelerating death, and 
other experiments confirm it beyond contradic- 
tion. I have repeated the fame experiment 
five times, and obtained the fame refults. The 
two frogs in the firft veffel always died fooner 
than thofe in the fecond and third, and the differ- 
ence of time was very perceptible ; it has uni- 
formly been a day, fometimes a day and a half, 
and fometimes longer. 
~ Inftead of two frogs, I put three in the firft 
veflel, and only one in the reft ; but equalizing 
the volume of air, by adding a quantity of water 
equal to two frogs in bulk. The three frogs not 
only died fooner than thofe in the other two vet. 
fels, but the difference was {till more confpicu- 
ous than before: it was two days and one hour 
with the frogs in the fecond; and two days and 
feven hours with the frogs in the third veffel, 
By increafing the number of frogs in the firt 
veflel, their death was conftantly accelerated with 
refpect to thofe in the fecond and third, though 
precautions were taken to equalize the volume 
of air by addition of water equal to the bulk of 
the frogs in the firft veffel. 
1 extended my experiments, and changed the 
fubjeGs to feverat {mall quadrupeds and birds, 
But 
