Vol. XVIII NOVENIBER 1, 1919 No. 3 



JOURNAL OF 



AGRICULTURAL 

 RESEARCH 



CONXKNXS 



Pago 



Natural Carbonates of Calcium and Magnesium in Relation 

 to the Chemical Composition, Bacterial Contents, and 

 Crop-Producing Power of Two Very Acid Soils - - 119 

 S. D. CONNER and H. A. NOYES 



( Contribution from Indiana Agricultural Experiment Station ) 



Recent Studies on Sclerotium rolfsii Sacc. - - - 127 



J. J. TAUBENHAUS 

 (Contribution from Texas Agricultura] Experiment Station) 



Effect of Variation in Moisture Content on the Water- 

 Eztractable Matter of Soils ------ 139 



J. C. MARTIN and A. W. CHRISTIE 



(Contribution from California Agricultural Experiment Station ) 



Pathology of Dourine with Special Reference to Micro- 

 scopic Changes in Nerve Tissues and Other Structures - 145 

 ROBERT J. FORMAD 



( Contribution from Bureau of Animal Industry ) 



Yellow-Berry in Hard Winter Wheat - - - - 155 



HERBERT F. ROBERTS 



( Contribution from Kansas Agricultural Experiment Station) 



Note on the European Com Borer (Pyrausta nubilalis 

 Hiibner) and Its Nearest American AJlies, with Descrip- 

 tion of Larvae, Pupae, and One New Species - - 171 



CARL HEINRICH 



(Contribution from Bureau of Entomology) 



PUBUSHED BY AUTHORITY OF THE SECRETARY OF AGRICULTURE, 



WITH THE COOPERATION OF THE ASSOCIATION OF AMERICAN 



AGRICULTURAL COLLEGES AND EXPERIMENT STATIONS 



WASHINGTON, D. C. 



WASHINQTON : QOVERNMENT PRINTINO OFFICE : lif* 



