Vol. XV NOVEJVIBER 4, 1918 No. 5 



JOURNAL OP 



AGRICULTURAL 

 RESEARCH 



CONXKNXS 



Pagn 



Fumigation of Cattleya Orchids with Hydrocyanic-Acid Gas 263 

 E. R. SASSCER and H. F. DIETZ 



{ Cootribation from Federal Horticultural Board ) 



Net Energy Values of Alfalfa Hay and of Starch - - 269 

 HENR"SEJ>RENTISS ARMSBY and J. AUGUST FRIES 



( Contiibution from Peaasylvania Agricultural Experiment Station ) 



Soil Factors Affecting the Toxicity of Alkali _ _ - 287 

 F. S. HARRIS and D. W. PITTMAN 



(Contribution from Utah Agricultural Experiment Station) 



PUBUSHED BY AUTHORITY OF THE SECRETARY OF AGRICULTURE, 



WITH THE COOPERATION OF THE ASSOCIATION OF AMERICAN 



AGRICULTURAL COLLEGES AND EXPERIMENT STATIONS 



WASHINGTON, r>. C. 



WASHtNOTON : OOVERNMENT PfKMTINO OFFICC : 1(18 



