ON nESPlRATION. 33^ 



Expert me fit IV. Ox f gen Gas. 



The pig hitherto employed was put into the glass vessel Exp. 4. with 

 A, which with the tube contaiaed 60 cubic inches of atmos- o^'geu gas. 

 pheric air ; 250 cubic inches of oxigen, containing 5 per cent 

 of azote, were admittotl into the gasometer communicating 

 ■with B, and during a quarter of an hour were made to pass 

 slowly through the vessel, in which the animal was confined, 

 to the empty gasometer communicating with C, where it 

 measured exactly 250 cubic inches; a portion was preserved 

 in the mercurial bath for examination, and the gasometer B 

 was replenished with 250 cubic inches of the sams oxigen; 

 this was passed, in about the same time as before, through 

 A into gasometer C, when it measured 248 cubic inches. 



250 cubic inches more of the o^^igen were now admitted 

 into gasometer B, and passed in the same manner through A 

 into C, where they measured 249. 



The gasometer B was for the fourth and last time sup- 

 plied with 250 cubic inches more of the oxigen, which were 

 passed as before, through A into C, during about a quarter 

 of an hour, and then measured 249. 



The pig had remained in the vessel one hour and twelve Resufe. 

 minutes; it did not appear to have suffered in the least ; por- 

 tions of the respired gas were saved from each of the gaso- 

 meters, and exaraitied as usual. v 



Oxigen. Azote. 



165 



65 



100 



No, 2. 248 Carb. acid 10 24-80 



Oxigen 78 193-44 



Azote 12 29-7-6 



100 



Cubic Inches. Contained in 



Carb. Acid. 



iOO parts. 





No. 1. 250 Carb. acid 8 



20 



Oxigen 66 





Azotg 26 





No. 3. 



