and Oxygen Gas ly Respiration. 259 



inches of gas remained in the lungs after a forcible attempt 

 at expiration - then the alate of the lungs before the experi- 

 ment must have been 



1 18-44 azote, 

 22-56 oxygen. 



141 



And after the experiment, 



132-54 oxygen; 

 8*46 azote. 



141 



Calculation on total Quantities. 

 Azote before the experiment, 81*50 cubic inches, 

 j — i contained in the lung's, 1 18*44 



199-94 



Azote after the experiment, 



found by the tests, 191*58 



contained in the lungs, - 8*46 



20004 



. - — i ■ )) '. ' 

 Oxygen before the experiment, 3178-40, .. 

 contained in the lungs, 22*5(5 



3201*06 



Oxygen after the experiment, 



found by the tests, 3001*42 



.-. — —r— contained in the lungs, 132*54 



3133*96 



~ 



Total of oxygen before the experiment, 3201*06 



Total of oxygen after the experiment, 3133*96 



Difference 67* 10 



The deficiency noticed in the experiment was 67, supposing 

 that the lungs were brought to the same state after as before 

 the experiment ; but granting that this was not the case, 



R 2 and 



