122 



PROPAGATION. 



crabs and some other trees and shrubs. It is not 

 necessary to use wax in any of the forms of bud- 

 ding. 



Grafting is of two general kinds. Aerial and 

 Terrestrial. The former is above ground, and will 

 always demand that the splice shall be so waxed as 

 to entirely exclude both air and water. The latter 

 is either performed under ground, or will be estab- 

 lished below ground, depending upon this to so far 

 exclude the air as to admit of the union. This is 

 applied to grafting the grape (not used) and to root 

 grafts, by which nearly all apples and crabs are 

 propagated. 



1?IG. 7. WHIP GRAFTING SHOWING (1) THE SLOPING CUTS, 



(2) THE PARTS TONGUKD, (3) SET TOGETHER, AND 



(4) THE WORK WAXED AND COMPLETED. 



Fig. 7 shows the manner of whip grafting, which 

 is very simple and effective. In this the cion and 



