Issued March 15, 1912. 



U. S. DEPARTMENT OF AGRICULTURE. 



BUKEAU OF PLANT INDUSTRY— Circular No. 93. 

 B. T. GALLOWAY, Chief of Bureau. 



THE DANGER OF USING FOREIGN 

 POTATOES FOR SEED. 



BY 



WILLIAM STUART, Expert, 



AND 



W. A. ORTON, Pathologist. 



LIBRARY 

 NEW YORK 

 Ar«JlCAL 



WASHINGTON : OOVERNMENT PRINTING OFFICE : 1912 



33663°— 12 



