Vol. V OCTOBER 25, 1915 Xo. 4 



JOURNAL OF 



AGRICULTURAL 



RESEARCH 



CONTENTS 



Page 



Effect of Temperature on the Movement of "Water Vapor 

 and Capillary Moisture in Soils . . . . . 141 



G. J. BOUYOUCOS 



Soil Temperatures as Influenced by Cultural Methods . 173 

 JOSEPH OSKAMP 



Altemaria panas, the Cause of a Root-Rot of Ginseng . 181 

 J. ROSENBAUM and C. L. ZINNSMEISTER 



DEPARTMENT OF AGRICULTURE 



WASHriSrGTON, B.C. 



WASHIKSTON : GOVER^•HE^a PRINTIKQ OFFICE : 1»U 



