APPENDIX. 



193 



Table 63. — Approximate Time Required to Produce Different 

 Wood Crops. 



Species. 



Locality. 



c3 O 



> 



1=3595 



Qj O 



H 



ss 



03 fl 



-03 



<1 



-1 



If 



CO 



Northern forests. 



Aspen 



Beech a 



Birch, paper... 

 Birch, yellow.. 



Hemlock a 



Maple, sugar a. 



Pine, jack 



Pine, red . . 



Pine, white 



Spruce, red 



Tamarack 



Central hardwood forests. 



Chestnut & 



Hickory (mockernut) b , 



Oak, black 



Oak, red 



Oak, white 



Poplar, yellow 



Poplar, yellow b . 



Farm timber 'plantations. 



Catalpa & 



Larch, European t-. 



Maple, silver b 



Walnut, black b... 

 Cottonwood b 



Me 



Mich.. 



Me 



N. Y.. 

 Mich . . , 

 Mich.. 

 Minn.. 

 Wis... 

 N. Y.. 

 N. Y.. 

 Minn.. 



Years. 

 30 



Miss 



Ky 



Ky 



Ky 



Tenn., 



vir. for. 

 Va., 2d 



growth. 



65 



20 

 50 

 23' 

 25 

 35 



Years. 

 40 

 80 

 50 

 85 

 100 

 90 

 45 

 40 

 40 

 85 



20 



111 



20 



ni 



23 



HI 





Ill 



25 



Nebr.... 





Years. 

 60 

 100 



Years. ' Years. 



25; 



65; 



35 ! 



1 



30 ; 



45 

 45 



25 



130 



150 



75 



55 



200 



180 



200 



100 

 90 



85 

 135 

 130 

 100 

 160 

 110 



a Species tolerant of shade which should show better results in second growth. 

 b Species growing under favorable conditions when measured. 

 35450°— Bull. 36—12 13 



