U. S. DEPARTMENT OF AGRICULTURE. 



BUREAU OF PLANT INDUSTRY BULLETIN NO. 92. 



B. T. GALLOWAY, Chief of Bureau. 



)ATE VARIETIES AND DATE CULTURE 



IN TUNIS. 



BY 



THOMAS H. KEARNEY, 

 PHYSIOLOGIST, PLANT BREEDING INVESTIGATIONS. 



ISSUED SEPTEMBER 6, 1906. 



WASHINGTON: 



GOVERNMENT PRINTING OFFICE, 

 1906. 



