262 OUR FORESTS AND WOODLANDS 
falling off in growth, i.e. to yield less of a 
return on the capital represented by soil plus 
growing stock than has until now been the 
case, then obviously it will be good business 
to clear it off and utilise the land for the pro- 
duction of a younger and more vigorous crop. 
It would of course be extremely inconvenient 
—nay, impossible in view of a regularly sustained 
annual yield—to treat every portion of a large 
woodland area in this particular manner on its 
own individual merits, but a general scheme as 
to rotation of the fall for given kinds of tree- 
crops in the given local circumstances can con- 
veniently be arranged and followed. When, 
these last being duly considered, the kind of 
crop, the system of management, and the 
rotation of the fall have been fixed on, the 
capital in wood must, in order to provide a 
regularly sustained annual yield, be adjusted 
and distributed in such a manner that each 
successive year’s fall shall consist of an equal 
or, rather, an equally productive area, while 
the capital in growing stock must consist of 
such number of equally productive areas as 
there are years in the period of rotation from 
