148 



TIME 



the reader to follow up to the very end in all their details 

 the successive steps of reasoning and thoroughly to under- 

 stand the way in which the results were obtained, 1 shall once 

 more take him behind the scenes. He will thus appreciate 

 the extreme simphcity of the method. Let us examine the 

 following table: 



CONSTANT OF PHYSIOLOGICAL ACTIVITY A 



For the age of twenty 



Mean value 



A 20^ 0-260 



Here we have five columns of figures. The first column 

 expresses the areas of the wounds. The second, the values of 



