Bulk in Weight in cubic inches. grains troy. Given out undecomposed as before 665,646 205,758.833 Recomposed carbonic acid gas 38,268 18,130.147 Azote liberated 165,927 50,027.405 Vapour of water as before 2,219 428.726 ——————— ——————————- Total 872,060 274,345.111 weighing as before, but less in bulk by 446¼ pints: so that for every 100,000 inches expired there were inspired 101,774 cubic inches. 457. When from the weight of carbonic acid gas thus expired, viz., 18,130.147 we deduct the small portion inhaled in solution with the air 105.130 —————————— The remainder is 18,025.017 The constituent parts of which are, oxygen derived from the air 13,109.104 —————————— And pure carbon derived from the blood being the difference 4,915.913 Thus in the compass of twenty-four hours the blood has produced 10 ounces and 116 grains very nearly of pure carbon. 458. Now, from the oxygen consumed Grains. in twenty-four hours as above 15,757.913 Deduct the weight restored in the form of carbonic acid gas 13,109.104 —————————— The remainder must have been absorbed into the blood 2,648.809 But the weight of carbon given out being as above 4,915.913 ————————— There is still an excess given outweighing 2,267.104 459. Some azote, however, is absorbed into the blood (439) as well as the above ascertained quantity of oxygen. The weight of azote so absorbed must be precisely 2,267.104 if the theory be true, that equal weights are expired and inspired. In which case, as the weight of the azote of the air inspired was, as shown above 52,294.509 While the azote expired could only have weighed 50,027.405 —————————- The difference would have been absorbed 2,267.104 And thus the weight of carbon discharged by the blood is precisely compensated by the united weight of the oxygen and azote which it has absorbed.