88 



behind, are rubbed off. The result of the second 

 years growth is the prolongation of the mother 

 branches Fig. 3), and the addition of another 



Fig. 2. Fig. 3. 



branch (b) on the outside of each. The following 

 summer affords a third pair (c) ; and at the end of 

 that season the tree has the appearance indicated by 

 Fig. 3. During the fourth or fifth year, each of 

 the branches a, b, c, divides into two. Of these three, 

 viz., a, by c, (Fig. 4) proceed in their original direc- 

 tion, while the others (d, e, A), diverge, and become 

 subordinate members. The next two seasons produce 



Fig. 4. 



