314 



MEMOIRS OF THE NATIONAL ACADEMY OF SCIENCES. 



Balance qfincomt and outgo of matter and energy. — The income and outgo of nitrogen, car- 

 bon, hydrogen, and energy in these experiments are shown in Tables XXIX to XXXII. It will 

 be noticed that the subject was nearly in nitrogen and carbon equilibrium. The amount of water 

 consumed was 1,382.5 grams, 600 of which were, contained in drinking water and 782.5 in coffee 

 infusion or water with which the alcohol was mixed. The agreement between the estimated 

 energy of materials oxidized in the body and the heat actually determined in these experiments 

 was very close, the variations being so small as to lie far within the limit of experimental error. 



Table XXIX. — Income ami outgo of nitrogen and carbon — Metabolism experiments Nos. 15-17. 



