28 ON THE INFLUENCE 



The air respired by the first rabbit contained 

 2\y of carbonic acid. 



502+52+245 511 , K - , . . -, - 

 "*" = - =25-55 cubic inches of 



carbonic acid evolved in 30 minutes, which is 

 at the rate of 51*1 cubic inches in an hour. 



EXPEKIMENT VI. 



Thermometer 66, barometer 30 '1 inch. 



Two rabbits, each occupying the space of 48 

 cubic inches, were inoculated with woorara. 



In one of them, when apparently dead, the 

 circulation was kept up by means of artificial 

 respiration. He was placed in the apparatus 

 under the glass-bell, and the lungs were inflated 

 from 50 to 60 times in a minute. At this time 

 the thermometer in the rectum stood at 97. At 

 the end of 35 minutes, a portion of air was pre- 

 served for examination. The thermometer had 

 now fallen to 90. The heart was still acting 

 regularly. 



The second rabbit was allowed to lie dead. 

 When the thermometer in the rectum had fallen 

 to 97, he was placed under another bell-glass. 

 At the end of 35 minutes, the thermometer had 

 fallen to 90-5. 



The air respired by the first rabbit, contained 

 Jg- of carbonic acid. 

 5 02 +2 +52-48 = 508 31 . ?5 

 1 o lo 



