126 



COMPARISONS OF RESPIRATORY EXCHANGE. 



TABLE 17. Respiratory exchange in comparison experiments with the Zuntz-Geppert apparatus 

 and the Benedict respiration apparatus (tension-equalizer unit). (Without food.) Continued. 



As in the previous comparisons, the differences between the averages 

 for the two apparatus have been calculated for each experiment, using 

 the values for the tension-equalizer unit as a base-line, and are given 

 in table 18. The results show that this difference is sometimes plus 

 and sometimes minus, and somewhat large in several of the compari- 



