Vol. XV OCTOBER 21, 1918 No. 3 



JOURNAL OP 



AGRICULTURAL 

 RESEARCH 



CONTENTS 



Page 



Effect of Hydrocyanic-Acid Gas under Vacuum Conditions 



on Subterranean Larvae ---___ 133 



E. R. SASSCER and H. L, SANFORD 



( Contribution from Federal Horticultural Board ) 



Catalase and Oxidase Content of Seeds in Relation to 



Their Dormancy, Age, Vitality, and Respiration - - 137 



WILLIAM CROCKER and GEORGE T. HARRINGTON 



(Contribution trom Bureau of Plant Industry) 



The Meadow Plant Bug, Miris dolabratus - - - 175 



HERBERT OSBORN 



(Contribution from Maine Agricultural Eiperiment Station) 



Angular-Leaf spot of Cucumber: Dissemination, Over- 

 wintering, and Control - - - - - - 201 



EUBANKS CARSNER 

 ( Contribution from Bureau of Plant Industry) 



PUBLISHED BY AUTHORITY OF THE SECRETARY OF AGRICULTURE, 



WITH THE COOPERATION OF THE ASSOCIATION OF AMERICAN 



AGRICULTURAL COLLEGES AND EXPERIMENT STATIONS 



WASHINGTON, D. C. 



WASHINQTON : QOVERNMCNT PfllMTINQ OFFIOC : lln 



