CONTENTS. 
Page. 
On the stability of the oxidases and their conduct toward various reagents 7 
The conduct of phenolphthalein in the animal organism 23 
A test for saccharin, and a simple method of distinguishing between cumarin 
and vanillin 31 
The toxicity of ozone and other oxidizing agents to lipase 37 
The influence of chemical constitution on the lipolytic hydrolysis of ethereal 
salts 43 
( 5 ) 
