Vol. XVI FEBRUARY 3, 1919 No. 5 



JOURNAL OP 



AGRICULTURAL 



RESEARCH 



CONXKNXS 



Pace 



Pbysoderma Disease of Com ------ 137 



W. H. TISDALE 

 (CooMtmUaa from Bbreau ol Plant Isdnatisf) 



PUBLISHED BY AUTHORITY OF THE SECRETARY OF AGRICULTURE, 



WITH THE COOPERATION OF THE ASSOOATION OF AMERICAN 



AGRICULTURAL COLLEGES AND EXPERIMENT STATIONS 



WASHINOTON, D. C. 



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