IQ20] 



ROSE, KRAYBILL, &• ROSE— OXIDASE ACTIVITY 



222 



Results 

 The results of the experiments are shown in tables I-VII and 

 figs. 1-5. 



TABLE I 



Effect of o. i N KG, NaCl, and LiCl on oxidation of pyrogallol by powdered 



HEALTHY APPLE BARK; TEMPERATURE 23 . 2-23 . 6° C* 



* In tables I-V 

 only water. 



manometer readings in cm. of mercury corrected against an apparatus containing 



Fig. i. — Effect of KC1, NaCl, and LiCl on oxidation of pyrogallol by powdered 

 healthy apple bark: A, control (bark and pyrogallol); B, KCl+bark and pyrogallol; 

 C, NaCl+bark and pyrogallol; D, LiCl+bark and pyrogallol. 



