Vol. XX MARCH 1, 1921 No. 11 



JOURNAL OP 



AGRICULTURAL 

 RESEARCH 



CONTENTS 



Page 



Evaluation of Climatic Temperature Efficiency for the 

 Ripening Processes in Sweetcorn - - 795 



CHARLES O. APPLEMAN and S. V. EATON 



( Contribution from Maryland Agricultural Experiment Station) 



Some Lepidoptera Likely to Be Confused with the Pink 



Bollworm --------- 807 



CARL HEINRICH 



( Contribution from Bureau of Entomology ) 



Biology of the Smartweed Borer, Pyrausta ainsliei Heinrich 837 

 GEORGE G. AINSLIE and W. B. CARTWRIGHT 



( Contribution from Bureau of Entomology ) 



Effect of X-Rays on Trichinae - 845 



BENJAMIN SCHWARTZ 



( Contribution from Bureau of Animal Industry ) 



Relation of the Calcium Content of Some Kansas Soils 

 to the Soil Reaction as Determined by the Electro- 

 metric Titration -------- 855 



C. O. SWANSON, W. L. LATSHAW, and E. L. TAGUE 



(Contribution from Kansas Agricultural Experiment Station) 



Green Feed versus Antiseptics as a -Preventive of Intes- 

 tinal Disorders of Growing Chicks - 869 

 A. G. PHILIPS, R. H. CARR, and D. C. KENNARD 



( Contribution from Indiana Agricultural Experiment Station ) 



Comparative Utilization of the Mineral Constituents in 

 the Cotyledons of Bean Seedlings Grown in Soil and 

 in Distilled Water - - - - - - - 875 



G. DAVIS BUCKNER 



( Contribution from Kentucky Agricultural Experiment Station ) 



Sunflower Silage Digestion Experiment with Cattle and 



Sheep - - - - - - - - - -881 



RAY E. NEIDIG, C. W. HICKMAN, and ROBERT S. SNYDER 



(Contribution from Idaho Agricultural Experiment Station) 



PUBLISHED BY AUTHORITY OF THE SECRETARY OF AGRICULTURE. 



WITH THE COOPERATION OF THE ASSOCIATION OF 



LAND-GRANT COLLEGES 



WASHINGTON, E>. C. 



WASHINGTON : GOVERNMENT PRINTING OFFICE : 1611 



