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 
48 
O 4-6 
JO 44 
I 
h 
UJ 
40 
38- 
LONGLEAF PINE 
\ 
\ 
\ 
\ 
s, 
6X1 
2' AN 
D 8'X 
16' 
«->, 
-— 
— 
-•19 
(4-- 

— I9I5-- 
.._ 

=> 
6 8 10 
TIME SEASONING 
12 14 
MONTH 
The 
Fig. 12.— Seasoning of longleaf pine timbers at Madison, Wis. 
obtained. The poles were seasoned on skids in the open, 
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. 
