MEMOIRS OF THE NATIONAL ACADEMY OF SCIENCES. 



:;l':> 



The calorimetric measurements for experiments L8-20 are given in detail, and those for 

 experiment 21 summarized, in Table XL1. 



T \Ki.E XI. I. — Summary of cahrimelric measurerm nts — Metabolism experiments Nos. 1S-20.* 



"Xo. 21 included for comparison. 



The determinations of reducing material in the ventilating air current were made according 

 to the method followed in the preceding experiments (see p. :'."iS). The analytical data are 

 shown in Table XLII. It will lie noticed that the amount of reducing material, reckoned as 

 Vol. 8— No. 6 7 



