SILYICULTURAL SYSTEMS. 



37 



others of greater value, or which are themselves be- 

 coming less valuable from year to year; and seed trees 

 of undesirable species likel}^ to reproduce themselves, 

 if reproduction of more useful kind is well assured. 

 The great majoritj^of woodlots need such cutting, and 

 when the}^ do, whatever wood is taken from them should 

 be cut in this wav. 



