Vol. XVIII JANUARY 15, 1920 No. 8 



JOURNAL OF 



AGRICULTURAL 

 RESEARCH 



CONTENTS 



Page 



Fixrther Studies of Sorosporella uvella, a Fungous Parasite 



of Noctuid Larvae ------- 399 



A. T. SPEARE 



( Contribution from Bureau of Entomology) 



Work and Parasitism of the Mediterranean Fruit Fly in 



Hawaii during 1918 ------- 441 



H. F. WILLARD 



(Contribution from Bureau of Entomology) 



Cyanogenesis in Sudan Grass: A Modification of the 

 Francis-Connell Method of Determioing Hydrocyanic 



Acid ---447 



PAUL MENAUL and C. T. DOWELL 



(Contribution from Oklahoma Agricultural Experiment Station) 



PUBUSHED BY AUTHORITY OF THE SECRETARY OF AGRICULTURE, 



WITH THE COOPERATION OF THE ASSOCIATION OF 



LAND-GRANT COLLEGES 



WASHINOTON, P. C. 



WA»HINUT0N4O0VeRNMENT MINTINO OFFIOB : IMC 



