( 172 ) 

 TABLE VIII. 



Evidentlj the curves satisfy tlie first differential equation much 

 better than the second. For the second tlie closest agreement is obtained, 

 here too, on the borders of the curves. 



Also for this mi.xture fi'.,, as function of x^ was determined by 

 means of the relation : 



— 6" •'! 



The values, found in this way, are given in Table IX 



T ABEL IX. 



