DOUGLAS AND BENEDICT METHODS. 



171 



TABLE 25. Respiratory exchange in comparison experiments with the Douglas method ami the 

 Benedict respiration apparatus (spirometer unit). (Without food) . -Continued. 



The experiments with the smaller bag were carried out previous to 

 July 4, 1912. The first experiment in the series, that with E. W. H. 

 on June 21, can not be considered satisfactory, as the variations are so 

 large in the individual periods. The other comparisons in which this 

 bag was used show a fair uniformity in the results. In all of the 

 experiments with the smaller bag the carbon-dioxide elimination is 



TABLE 26. Variations of average results obtained with the Douglas respiration apparatus from 

 those obtained with the Benedict respiration apparatus (spirometer unit). 



