438 



Influence of Inanition on Metabolism. 



Table 220. Proportion of total water of respiration and perspiration eliminated 

 from the lungs and skin, respectively, in metabolism experiments with and 

 without food. Continued. 



CARBON DIOXIDE ELIMINATION. 



Carbon dioxide is the end product of oxidation of all carbonaceous material, 

 aside from those fragments of the proteid molecule that are excreted in the 

 urine. A measure of the carbon dioxide production furnishes, therefore, an 

 estimate of total katabolism that has been of great value. 



From the earliest experiments of Lavoisier," 3 Davy, 114 and Allen & Pepys, 118 

 the importance of carbon dioxide in the respiratory gases has been emphasized. 



118 Memoires de l'Academie des Sciences, Paris, 1789, CEuvres de Lavoisier, 2, p. 

 695. Cited by R. Tigerstedt, Die Physiologie des Stoffwechsels, Nagels Handbuch 

 der Physiologie des Menschen (1905), p. 337. 



m " Researches," p. 431. 



118 Philosophical Transactions (1808), p. 250. 



