Analyfis of the Air. 237 



of the whole, nearly what was abforbed 

 by a Candle in the fame veflel, in Experi- 

 ment 106. 



I placed at the fame time, in the fame 

 manner, another almoft half-grown Rat 

 under a veffel, whofe capacity above the 

 furface of the water z z y (Fig. 35.) was but 

 594 cubick inches, in which it lived 10 

 hours , the quantity of elaftick air which 

 was abforbed, was equal to 45 cubick 

 inches, viz. 7^ part of the whole air, which 

 the Rat breathed in: A Cat of three months 

 old lived an hour in the fame receiver 

 and abforbed 16 cubick inches of air* 

 viz. -jk part of the whole; an allowance 

 being made in this eftimate for the bulk of 

 the Cat's body. A Candle in the fame vefiel 

 continued burning but one minute, and ab- 

 forbed 54 cubick inches, T \ part of the 

 whole air. 



And as in the cafe of burning Brimjione 

 and Ca?idles, more air was found to be ab- 

 forbed in large veflels than in fmall ones ; 

 and vice verfa, more air, in proportion to the 

 capacity of the veiTel, was abforbed in fmall 

 than in large veflels, fo the fame holds true 

 here too in the cale of animals. 



Expe- 



