UNITED STATES DEPARTMENT OF AGRICULTURE 

 BULLETIN No. 271 



Contribution from the Bureau of Plant Industry 

 WM. A. TAYLOR, Chief 



Washington, D. C. 



PROFESSIONAL PAPER 



September 28, 1915 



DATES OF EGYPT AND THE SUDAN 



By 



S. €. MASON, Arboriculturist, Crop Physiology and 

 Breeding Investigations 



CONTENTS 



Page 

 Introduction 1 



Nile Valley Dates end Their Climatic 

 Environments 2 



Page 



Description of Varieties 17 



Summary ............ 39 



WASHINGTON 

 GOVERNMENT PBINTING OFFICE 



1915 



