PREVENTION OF WOUNDS 219 



heart-shaped, and a little pocket remains just be- 

 hind the notch of the heart, the wood in front 

 of the pocket must be removed with a gouge. 

 Indeed, a gouge is rather frequently needed to 



The apparent base of the limb is 

 at " A " but the real base is 

 at " B," where the cut should 

 be made 



supplement the work of the saw in so shaping 

 pruning wounds that they can heal normally. 



Fungi enter wounds mainly through season 

 checks and at the lowest part of the wound, where 

 the drying of the bark and the starting of a callus 

 often expose the wood just below the' bottom of 

 the cut, and also form a pocket in which water 



