Journal of Agricultural Research 



Vol. XVI, No. I 



Figure i shows the results of titrating to Ph 7. At 20° the increase 

 is slow and gradual. At 40° it is very rapid up to two hours, and then 

 it is very gradual. 



Fig. 1.-- Grapns showing the Ir/drogen-icn concentraUon of wheat extract ca titration to Pa 7. 



Vie. 2.— Graphs -.liowing the hydrogen-ion concentration of wheat extract on titration to Ph 8.3. 



Fig. 3.— Graphs showing the hydrogen-ion concentration of wheat extract on titration to Pm 9-. 



