and Oxygen Gas by Respiration, 265 



8. -r - 272 



9. - - 250 



10. - -. 304 



11. - - 223 



12. - - • 223 



3060 



No l 3 tried by itself, contained in 100 parts, 

 9 carbonic acid, 

 22 azote, 

 69 oxygen. 



100 



Ko. 12, the last, contained in 100 parts, 

 12 carbonic acid, 

 5 azote, 

 83 oxveen. 



100 



On account of an accident we cannot give the proportions 

 contained in 2 to 10 ; but the contents of the first and last 

 gasometers confirm the former experiment, and showUhat 

 the proportion of azote continues to diminish, as the expe- 

 riment proceeds, and also that there is a larger proportion of 

 carbonic acid given ofjf when oxygen is employed, instead of 

 atmospheric air. 



In this recital of experiments, which have occupied a con- 

 siderable portion of time and attention, we have endea- 

 voured to give a plain statement of facts, from which every 

 one may draw conclusions for himself; we shall here, how- 

 ever, take the liberty of briefly recapitulating the principal 

 pf those facts, and submitting what seems to us the most 

 obvious inferences. 



1. It appears that the quantitv of carbonic acid gas emit- 

 ted is exactly equal, bulk for bulk, to the oxygen consumed, 

 and therefore there is no reason to conjecture that any water 

 is formed by an union of oxygen and hydrogen in the lungs. 



2. Atmospheric air once entering the lungs, returns 

 charged with from 8 to 8*5 per cent, carbonic acid gas^ and 



1 when, 



