TIMBERS. 



^7 



When grown, the main stem, either used whole, 

 sawn in two, or quartered, will form one wing of the 

 knee, and the bent branch the other ; see figs, c, d. 

 The dotted lines shew the saw section. Particular 

 attention must be paid to prevent oaks from sepa- 

 rating into more than fom- leaders, and also to train 

 up these leaders a considerable height, without al- 

 lowing them to divide again, retaining always nu- 

 merous feeders ; thus, when the tree acquires size, 



