THE SEASONING OF WOOD. 



17 



from the average weight of the ties. The weight per unit volume 

 could not be used, as in many cases the volumes of the ties were not 



50 



X 

 O +2 



UJ 

 40 









































































































































LONGLEAF PINE 





















































































































































6X1 



2' AM 



oa'x 



16" 













































































































































<r— 



— 



— 



-•19 



14 — 



■ 







* 



<r- ■ 











— 19 



IS- — 



— 



— 



— 



-•, 



— ? 



ww 2 4 6 8 10 12 14 16 18 20 



TIME SEASONING -MONTH 

 ' ; . Fig. 12. — Seasoning of longleaf pine timbers at Madison, Wis. 



obtained. The poles were seasoned on skids in the open. The 

 sawed timbers were seasoned in open piles under shelter. 



LUMBER. 



Sawed lumber generally is dried by being piled in stacks with air 

 spaces between the boards. In forming the stacks the boards usually 

 are laid flat, with strips called stickers between courses or layers. 



Fig. 13. — Lumber piled sidewise on cement and metal foundations. 



