Vol. V DECKMBER 13, 1915 No. 11 



JOURKA^L OP 



AGRICULTURAL 



RESEARCH 



CONTENTS 



Pag« 



Translocation of Mineral Constituents of Seeds and Tubers 



of Certain Plants during Growth 449 



G. DAVIS BUCKNER 



Fate and Effect of Arsenic Applied as a Spray for Weeds . 459 

 W. T. McGEORGE 



Angular Leaf-Spot of Cucumbers . . . . . 465 

 ERWIN F. SMITH and MARY KATHERINE BRYAN 



Activity of Soil Protozoa 477 



GEORGE P. KOCH 



Beriberi and Cottonseed Poisoning in Pigs . . 489 



GEORGE M. ROMMEL and B. B. VEDDER 



DEPARTMENT OF AGRICULTURE 



■WASHINGTON, B.C. 



WASHINOTOrt : OOVERNMENT FRilTTtNA OPTtCE : 1>1> 



