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doubt that a proper surface covering would have easily obviated 
this drawback. 
The principal difficulty found in introducing ohia lumber on 
the market is the indisputable fact that it is very liable to warp 
and twist. i\Ieans of overcoming this difficulty, however, can 
be readily found. Great attention should be paid to piling and 
drying the lumber. An important requirement is that the boards 
should be piled in such a manner as to allow a free circulation of 
Loading ohia logs. 
air. The lower tier of boards should be laid about 8 inches apart, 
while the boards in the upper layers may be only 3 inches apart. 
The piles should not be more than 6 feet wide. The layers of 
boards should be separated from each other by means of strips 
or stickers about an inch square and laid 2 feet apart. To pre- 
vent staining the stickers should be thoroughly dry. The top of 
the pile should be weighed down with ties or heavy blocks, or 
better still, the lumber should be piled in a roofed shed and the 
pile should be pressed down by means of jack-screws working 
between the upper layer of the boards and the roof of the shed. 
