MEMOIRS OF THE NATIONAL ACADEMY OF SCIENCES. 



327 



Balana qfincomt and outgo of matter and energy : The income and outgo of nitrogen, carbon, 

 hydrogen, and energy in these experiments are shown in Tables XLIII to XLVI. 



Table XLIII. — Incomt and outgo of nitrogen andcarbon — Metabolism experiments Nos. 18-20." 



■ No. 21 included for comparison. 

 Table XLIY. — Income and outgo of water and hydrogen — Metabolism experiments Nos. 18-21." 



"No. 21 included for comparison. 



"During the 9 days of these experiments 2S.5 grains water was evaporated from the hygrometer, or an average 

 of 3.2 grams per day. which is here added to the drink. 



