U. S. DEPARTMENT OF AGRICULTURE. 



BUREAU OF PLANT INDUSTRY— BULLETIN NO. 192. 



B. T. GALLOWAY, Chief of Bureau. 



DROUGHT RESISTANCE OF THE OLIVE 

 IN THE SOUTHWESTERN STATES. 



BT 



SILAS C. MASON, 



Arboriculturist, Crop Physiology and 

 Breeding Investigations. 





QHieo 



^/v. 



Issued January 17, 1911. 



WASHINGTON: 



GOVERNMENT PRINTING OFFICE. 



1911 . 



