Vol. XII MARCH 25, 1918 No. 12 



JOURNAL OF 



AGRICULTURAL 



RESEARCH 



CONTENTS AND INDEX 

 OF VOLUME XII 



PUBUSHED BY AUTHORITY OF THE SECRETARY OF AGRICULTCRE. 



WITH THE COOPERATION OF THE ASSOCIATION OF AMERICAN 



AGRICULTURAL COUEGES AND EXPERIMENT STATIONS 



WASHINGTON, D. C. 



WASMINOTONt OOVCRNMCNT PmNTUM OFFIOE I IMI 



