THE PEAR. 61 



tions may be modified by particular circumstances, 

 indicated at the time of the second pruning, and that 

 the use of incisions must be resorted to in the cases 

 before specified. 



Fig. 42. Third Pruning of the Pyramidal Pear. 



The summer operations are the same as after the 

 second year's pruning. 



Fourth Pruning. Figure 43 indicates the changes 

 that the tree has experienced during the preceding 

 summer. 



The fourth pruning differs from the others in several 

 particulars. We allow to the new extensions of the 

 lower branches only half the length of former pruning, 

 because they are on the point of attaining the limit 

 beyond which they must not be allowed to grow ; be- 

 sides which, they have now attained a size which will 

 enable them to maintain their proper vigour. 



