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- 



