Vol. XII JANUARY 7, 1918 No. 1 



JOURNAL OF 



AGRICULTURAI/ 



RESEARCH 



CONXENXS 



Effect of Time of Digestion on the Hydrolysis of Casein in 

 the Presence of Starch - - - -* • -1 

 J. S. McEARGUE 

 ( CooMlmtira (zoffi Xentvcky AcrieaMonl Bspetimeitf Sti^ 



Behavior of Sweet Potatoes in the Ground - - • . 9 

 HEINRICH HASSELBRING 



(Coxrtribotlon trotn BuiMii of Plant Indtistiy) 



Studies in Soil Reaction as Indicated by the Hydrogen 

 Electrode - - - » - - - . . if) 



J. K. PLUMMER 

 CoaWbBden fn»i nMb CcMUaa Acricnltona Bxpwlia^ 



PUBLISHED BY AUTHORITY OF THE SECRETARY OF AGRICULTURE, 



WITH THE COOPERATION OF THE ASSOCUTION OF AMERICAN 



AGRICULTURAL COLLEGES AND EXPERIMENT STATIONS 



WASHINOTON, D. C. 



WMHINOTOM ! OOVtHNMCNT MIMTIMO OTriOC : 1618 



