Vol XIX JUKE 1. 1920 No. 5 



JOURNAL OP 



AGRICULTURAL 

 RESEARCH 



CON'TE^NXS 



p«ff« 

 Beharior of the Citrus^Canker Organism in Soil - - 189 



H. ATHERTON LEE 



(Contribution bom Bureau ol Plant Induatiy) 



Decline of Pseudomonas citri in the Soil .... 207 



H. R. FULTON 



(Contribution from Bureau oi Plant Industry) 



Variation of Individual Pigs in Economy of Gain - - 225 



R. C. ASHBY and A. W. MALCOMSON 



(Contribution from Minnesota Agricultural Experiment Station) 



Production of Conidia in Gibberella saubinetii - - 235 



' JAMES G. DICKSON and HELEN JOHANN 

 (Contribution from Bureau of Plant Industry and Wisconsin Agricultural Experiment Station) 



PUBLISHED BY AUTHOMTY OF THE SECRETARY OF AGRICULTURE, 



WITH THE COOPERATION OF THE ASSOCIATION OF 



LAND-GRANT COLLEGES 



WASHINOXON, D. C. 



WACHl.tOTON : eOVERNMENT PRINTINO OPPlOe I IM« 



