322 



MEMOIRS OF THE NATIONAL ACADEMY OF SCIENCES. 



The details of the measurements of carbon dioxid and water in the ventilating air current 

 are shown in Tallies XXXVIII to XL, which follow. The total amounts of carbon dioxid and 

 water eliminated each day in Experiment No. 21 are also added for comparison. 



Table XXXVIII. — Comparison of residual amounts of carbon dioxid and water in the chamber at the beginning ami end 

 of each period, and the corresponding gain or loss — Metabolism experiments Nos. 18-20. 



