Supposing it as before, to be about 32 cubic inches: from the rule of proportion, they will be composed of
| Nitrous oxide | 14,7 |
| Nitrogene | 13,3 |
| Carbonic acid | 1,9 |
| Oxygene | 2,1 |
And the whole quantity of gas in the lungs and the airholder, supposing the temperature 59°, will equal 94 cubic inches, which are composed of
| Nitrous oxide | 43,7 |
| Nitrogene | 39,0 |
| Carbonic acid | 5,2 |
| Oxygene | 6,1 |
| 94 |
But before the experiment, the gas in the lungs and airholder equalled 134 cubic inches, and these, reckoning for the common air, were composed of
| Nitrous oxide | 100 |
| Nitrogene, | 24,3 |
| Carbonic acid | 4,1 |
| Oxygene | 5,6 |
Hence, it appears, that 56,3 cubic inches of nitrous oxide were absorbed in this experiment, and 13,7 of nitrogene produced, either by evolution from the blood, or decomposition of the nitrous oxide. The quantities of carbonic acid and oxygene approach so near to those existing after the respiration of hydrogene, that there is every reason to believe that no portion of them was produced in consequence of the absorption, or decomposition of the nitrous oxide.
b. In Exp. 2, calculating in the same manner, before the first inspiration, a quantity of gas equal to 216,5 cubic inches at 47°, existed in the lungs and airholder, and these 216,5 cubic inches were composed of
| Nitrous oxide, | 182,0 |
| Nitrogene | 24,9 |
| Carbonic acid | 4,1 |
| Oxygene | 5,5 |
| 216,5 |
After the compleat expiration, 160 cubic inches remained in the lungs and airholder, which was composed of