Woodcraft is dedicated to the Grand Army of "Outers," as a pocket volume of reference on—woodcraft.  
For brick and mortar breed filth and crime,
With a pulse of evil that throbs and beats;
And men are withered before their prime
By the curse paved in with the lanes and streets.
And lungs are poisoned and shoulders bowed,
In the smothering reek of mill and mine;
And death stalks in on the struggling crowd—
But he shuns the shadow of oak and pine.
NESSMUK.