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UNITED STATES DEPARTMENT OF AGRICULTURE 
BULLETIN No. 1041 
Contribution from the Bureau of Plant Industry 
WM. A. TAYLOR, Chief 
Washington, D. C. 
January 11, 1922 
A STUDY OF SWEET-POTATO VARIETIES 
WITH SPECIAL REFERENCE TO 
THEIR CANNING QUALITY 
By 
C. A. MAGOON and C. W. CULPEPPER 
Office of Horticultural and Pomological Investigations 
CONTENTS 
Page 
Introduction 1 
Chemical Composition of Sweet Potatoes 3 
Experimental Canning Tests € 
Discoloration 13 
Heat Penetration and Sterilization IS 
Consistency 16 
Varieties and Strains of Sweet Potatoes Used in These Tests ... 23 
Summary 30 
Literature Cited 33 
WASHINGTON 
GOVERNMENT PRINTING OFFICE 
1922 
