UNITED STATES DEPARTMENT OF AGRICULTURE 
DEPARTMENT BULLETIN No. 1485 
Washington, D. C. T May, 1927 
THE SUITABILITY OF AMERICAN WOODS 
FOR PAPER PULP 
SIDNEY D. WELLS, Engineer in Forest Products 
and 
JOHN D. RUE, In Charge of Section of Pulp and Paper 
Forests Products Laboratory, Forest Service 
CONTENTS 
Page 
Introduction • . 1 
Standard Pulping Methods 5 
Experimental Procedure 11 
Pulping Characteristics of Groups of Woods 17 
Suitability of Individual Species for Pulping 21 
Tables of Cooking and Strength Data 65 
UNITED STATES 
GOVERNMENT PRINTING OFFICE 
WASHINGTON 
1927 
