272 REPORT OF THE CHEMIST OF THE 
Equivalent Volume of Solut YS 

Amt Acid Fixea per Gg: of Solid 
Fic. 19.—Typical curves contrasting relations in adsorption, with those 
in formation of an insoluble hydrolyzible salt from an insoluble base. 
The adsorption curves are plotted in accordance with the exponential 
formula ee es 
Arrows above curves indicate direction of change 
2 
caused by addition of acid. 
