Atmospheric Air and Oxygen Gas hy Respiration . 273 
7- 
- 
- 
241 
8. 
- 
- 
2 9 6 
9 ■ 
- 
- 
256 
10. 
- 
- 
2 5 6 
13. 
- 
- 
28 6 
12. 
- 
2 57 
13- 
1 68 
3362 
The 13th gasometer was the whole of the last single and 
forcible expiration, portions were saved from each of the 
gasometers, and we first examined the state of No. 1. 
100 parts contained 9 carbonic acid, 
25 azote, 
66 oxygen, 
] 00 
The large quantity of azote in this case, was a clear proof 
that our conjecture upon the residual gas in the lungs was 
well founded. 
We then examined a mixture of No. 2 and 3. 
100 parts contained 10.5 carbonic acid, 
10 azote, 
79-5 oxygen, 
100 
here the quantity of azote was diminishing, and the ratio of 
carbonic acid increasing, so that it appears necessary for the 
lungs to be cleared of azote, before the increased proportion 
of carbonic acid can take place. 
N n 
MDCCCVIII. 
