26 
BULLETIN 1241, U. S. DEPARTMENT OF AGRICULTURE. 
sulphite pulp is still in its infancy. Mechanical and sulphite pulp together 
(Table 14) absorbed nearly 7,170,000 7 cords, or 78 percent of the total pulp-wood 
requirements for 1922. Our pulp-wood requirements for these two pulp grades 
PULPWOOD REQUIRED TO MEET THE AMERICAN PAPER CONSUMPTION IN 1922 
BY GROUPS OF SPECIES 
SPRUCE-FIR-HEMLOCK (Mechanical-Sulphite Requirements) 
1 t • 
Domestic Pulpwood 
fj i s r s r 
Imported Pulpwood Equivalent of 
Wood Pulp Imported Wood Pulp and Paper 
I I 
HARD PINES MAINLY (Sulphate Requirements) 
- ASPEN AND OTHER HARDWOODS (Soda Requirements) 
© 
012345676 
MILLION CORDS 
3?ig. 19. — Puip wood for mechanical and sulphite pulp constituted 78 per cent of the total required in the 
paper consumed in the United States in 1922. Use is confined almost exclusively to spruce, fir, and 
hemlock, of which there remain only limited supplies in the regions where the pulp industry is con- 
centrated. Much smaller amounts of pine and hardwoods are needed for sulphate and soda pulp. The 
outstanding problem is, therefore, to secure additional domestic supplies of spruce, fir, and hemlock. 
have increased at the rate of 237,000 cords a year since 1899 against a rate of 
about 313,000 cords a year (Table 29) for our total pulp-wood requirements. 
The great need under present pulp and paper processes is therefore for spruce, 
fir, and hemlock. To offset pulp-wood imports, it will be necessary to find about 
AVERAGE ANNUAL INCREASE IN PULPWOOD REQUIREMENTS 
BY GROUPS OF SPECIES 1899-1922 
TOTAL 
PULPWOOD 
SPRUCE, FIR, 
HEMLOCK, 
(Mechanical 
Sulphite) 
M A I N LY 
HARD PINE, 
(Sulphate) 
ASPEN 
AND OTHER 
HARDWOODS, 
(Soda) 
FROM DOMESTIC FROM [IMPORTS 
SOURCES IN ALL FORMS 
• 
SEfflB 
^2? HUNDRED THOUSAND CORDS 
Fig. 20. — Seventy-five per cent of the average annual Increase in pulp-wood requirements siuco 1899 has 
been for spruce, fir, and hemlock for mechanical and sulphite pulp. Except in hardwoods, imports of 
paper, pulp, and pulp wood combined have increased more rapidly than (he cut of domestic wood. 
870,000 cords. To be entirely self-supporting this amount would have to be 
increased to 3,916,000 cords, and it would be necessary to supplement the latter 
by an additional 237,000 cords a year to remain independent. 
7 This does not include the spruce, fir, and hemlock used in the sulphate process, but the omission is 
partly offset by the volume of speeie.s primarily .suited for sulphate pulp which are used for mechanical 
and sulphite. 
