HOW WOUNDS HEAL 



123 



FIG. so— CROSS SECTION OF 

 PINE SCANTLING 



Notice oblique grain of wood In 

 lower knot and the hark which the 

 trunk has tried to co\er. Also 

 notice the grain in the main stem 

 bent out of shape by knots above 

 and below. Compare Fig. 81. 



and dense that the trees are 

 often said to be"bark: bound." 

 Good cultivation, fertilizing, 

 pruning and cultural care 



FIG. SI 

 DEAD LIMBS BEING BURIED 

 The lower limb has been cut 

 more obliquely than the upper. 

 The trunk is making a desperate 

 attempt to cover the" stub, but the 

 dead bark in Fig. SO (a cross sec- 

 tion) shows how poorly it is suc- 

 ceeding. 



may or may not promote ex- 

 pansion and rupture of the bark and consequent good health. 

 Where these methods fail fruit growers may effect a chano-e 

 for the better by softening the bark ^\■ith washes of h-e or 

 soap, or by slitting. This latter process consists in cutting 



