THE SEASONING OF WOOD. 



13 























220 









































200 



[ 







l-BLACK PINE 



"j-prn Diwr I 





c/> 



\ 







i 



rDOUGLAS F 



IR 





3 '80 



1 



A 



















•".en 



\ 



















o: lbu 



LU 



,\ 



















3C ..„ 



y > 



v 



1 















U 140 

 LU 



3 





N 



















\s\ 

















120 





















100 



































TIME SEASONING - MONTHS 



2 4 6 8 



TIME SEASONING - MONTHS 



Fig. 2— Southwestern ties, (o) Seasoning of ties at Pecos, N. Mex.; cut in January and February; 

 (b) seasoning of ties at Pecos, N. Mex.; cut in August, September, and October. (Black and red pine 

 are local names for western yellow pine; black pine refers to young trees and red pine to mature trees). 



240 



200 



S2'80 



:ieo 



: 140 



120 



100 



80 



60 















1 1 1 1 





















10-LODGEPOLEPINE 





















II- 



12- 



DOUGLAS FIR 



JPfT 



i rn 

















13- 



WESTERN L ARCH -PEECEO 















"14- 

 IS- DOUGLAS FIR J 



-Ult 



rii 



-LU 















16- 











ja^ 



































2 







































u 8 



























Jgi 





























■A 



U 



















































































, 18 - 



j 































>IS 































To* 



























































































































? 





i 



< 





1 



i 



i 







i 



3 





TIME SEASONING -MONTHS 



Fig. 3.— Northwestern ties. Seasoning of lodgepole pine ties at Bozeman, Mont., Douglas fir at Sandpoint, 

 Idaho (curves 11 and 12), Pasco, Wash, (curve 15), and Tacoma, Wash, (curve 16); and western larch at 

 Sandpoint, Idaho, cut in January and February; Tacoma ties in December and January. 



