LUMBER CUT OF UNITED STATES, 1870-1920. 
41 
quantity of yellow pine reported, or the ratio of white oak cut to the 
total. It is not practicable in lumber census work to do more than 
group the figures for all of the yellow pines together, and treat the 
BILLIONS OF BOARD FEET 
234-567 89 
10 
II 
YELLOW PINE 
DOUGLAS FIR 
OAK 
WESTERN YELLOW PINE 
HEMLOCK 
WHITE PINE 
MAPLE 
GUM 
SPRUCE 
CYPRESS 
REDVv/QOD 
CHESTNUT 
BIRCH 
LARCH 
YELLOW POPLAR 
BEECH 
WH ITE FIR 
CEDAR 
ELM 
BASSWOOD 
TUPELO 
ASH 
COTTONWOOD 
HICKORY 
SUGAR PINE 
BALSAM FIR 
WALN UT 
LODGEPOLE PINE 
SYCAMORE 
MINOR SPECIES 
COMPUTED TOTAL LUMBER PRODUCTiON IN 1920 BY KINDS OF WOOD 
Fig. 14.— The predominance of valuable softwoods in North American forests was one of the reasons for 
the rapid economic development of the United States. 
oaks, gums, cedars, and other woods in the same way, since no stand- 
ard classification is found among the lumbermen. Producers in dif- 
ferent sections frequently apply different local names to the same 
species, and only confusion would follow an attempt to segregate the 
figures. 
