U. S. DEPARTMENT OF AGRICULTURE, 

 BUREAU OF PLANT INDUSTRY BULLETIN NO.' 92. ' 



B. T. GALLOWAY, Chief of Bureau. 



DATE VARIETIES AND DATE CULTURE 



IN TUNIS. 



BY 



THOMAS H. KEARNEY, 

 PHYSIOLOGIST, PLANT BREEDING INVESTIGATIONS. 



ISSUED SEPTEMBER 6, 1906. 



WASHINGTON: 



GOVERNMENT PRINTING OFFICE 

 1906. 



