Messrs, Allen and Pepys on Respiration . 4,23 
g per cent, azote ; these 30 parts being detonated in Davy’s 
improved Volta’s eudiometer, by the electric spark, were 
reduced to 3 parts, and these 3 parts being treated with the 
tests for oxygen, were reduced to 2 parts, a proof that all the 
hydrogen had been consumed; but the 10 parts of oxygen 
contained, 3 of azote; this deducted from 2, leaves 1,7 for tliQ 
azote contained in 20 parts of the residuum 78. 
20 : 1,7 : : 78 : 6,6 
The mixture employed, therefore, contained in every 100 parts 
22 oxygen 
6,6 azote 
71,4 hydrogen 
100 
We next examined the gas which had been respired. 
No. 1. 250 cubic inches respired during fifteen minutes. 
100 parts, subjected to the action of lime water in Pepys ’ s 
eudiometer, were reduced to 93,5, and this by the tests for 
oxygen was farther diminished to 77: 20 parts of this 77, 
mixed with 10 of oxygen and detonated, the residuum treated 
with the tests for oxygen, left 12 parts which were azote. 
From these 12 parts 
Deduct ,3 for the azote in the 10 parts oxygen 
Leaves 11,7 for the azote contained in 20 parts of 
the residual 77. 
30:11,7:: 77: 45 
No. 1, therefore consisted in 100 parts of 
6,5 carbonic acid 
16,5 oxygen 
45 azote 
32 hydrogen 
