JACQUES LOEB 



725 



130 

 120 

 110 

 100 



1 9^ 



fe 70 



:? 60 



■^^ 50 



a 40 



I 30 



20 



10 



5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 60 85 90 95 100 

 Time in minutes 



Fig. 3. Curves of fall of level of water when diffusing against solutions of 

 MgC]2 of different concentrations. 



120 



5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 QO 85 90 95 100 

 Tima in Tninutes 



Fig. 4. Curves of fall of level of water when diffusing against solutions of 

 different salts of sodium and potassium, showing the increase in rate with increase 

 in valency of anion. 



