298 MEMOIRS OF THE NATIONAL ACADEMY OF SCIENCES. 



Table X. — Comparison of residual in, munis of carbon dioxid and water in the chamber, etc. — Continued. 



The determinations of carbon dioxid in the ventilating air current in this experiment are 

 given in detail in Table XI. This table shows the total ventilation in liters during each 6-hour 

 period, and the quantity of carbon dioxid in the incoming air and in the outgoing air. The 

 difference between the carbon dioxid in the incoming and outgoing air, corrected for changes in 

 the amount of residual carbon dioxid, gives the amount actually exhaled by the subject. Three- 

 elevenths of this amount is taken as the quantity of carbon. 



The letters in the column headings of these tables serve to indicate how the quantities in the 

 different columns are obtained. 



Table XI. — Record of carbon dioxid in ventilating air current — Metabolism experiment No. 1J. 



