Vol. V OCTOBER 11, 1915 No. 2 



JOURISJAL OF 



AGRICULTURAL 



RESEARCH 



CONTENTS 



Page 



Perennial Mycelium in Species of Peronosporaceae Re- 

 lated to Phytophthora inf estans . . ... 59 



I. E. MELHUS 



Hibernation of Phytophthora infestans of the Irish Potato 71 

 I. E. MELHUS 



DEPARTMENT OF AGRICULTURE 



WA.S HINGTON , D.C. 



WASHINGTON : GOVERNMENT PRINTING OFFICE : 1»1B 



