CHANGES PRODUCED IN AIR BY RESPIRATION. 



197 



Therefore upon this calculation it appears, that 141 cubic State of the 

 inches of gas remained in the lun«;s after a forcible attempt ,hc experi- 

 at expiration; then the state of the lungs before the expe- menr', % 

 riment must have been 



118-44 azote, 

 22*56 oxigen. 



141 



And after the experiment, 



132*54 oxigen, 

 8*46 azote. 



and after. 



141 



Calculation on total Quantities. 



Azote before the experiment 

 contained in the lungs 



Azote after the experiment, 



— found by the tests, 



— - — contained in the lungs, 



81*50 cubic inches, Calculation oh 

 118-44 the whole 



quantitj«. 



199*94 



191*58 

 8*46 



200*04 



Oxigen before the experiment, 3178*50 

 ' contained in the lungs, 22*56 



Oxigen after the experiment, 

 Found by the tests, 

 Contained in the lungs, 



3201*o6 



3001*42 

 132*54 



» ■ " i m 



3133*96 



Total of oxigen before the experiment,3201*o6 

 Total of oxigen after the experiment, 3 133*96 



Difference '^'lO 



The deficiency noticed in the experiment was 67, supposing D fi • t 



that the lungs were brought to the *ame gtate after as beiore oxigen. 



the 





