2 
TIMBER AND TIMBER TREES. 
and of the influences they severally exert on the strength 
and durability of the pieces in which they occur ; and, 
further, to offer a few remarks on the principal points 
that should be attended to in selecting timber for use. 
It will also be in keeping with the object in view, 
if I treat of the growth and formation of timber trees, 
a slight knowledge, at least, of this being necessary to 
enable us to appreciate their character and general 
caoabilities. 
