272 



A YEAR IN AGRICULTURE 



should be cut for graft. Two scions, each containing three 

 buds, should be placed with the cambium layers in contact 

 in the cleft of the stock, and the whole exposed cut surface 

 then covered with grafting wax. 



FIG. 37. B. TIPPING THE GRAFT WITH WAX 



If both grafts grow, one may be removed to allow room 

 for the other. 



TYPES OF FRUIT 



Tree fruits. The common farm orchard tree fruits belong 

 to two classes : the pomaceous fruits, including the apple, 

 pear, quince, etc., and the drupaceous or stone fruits, includ- 

 ing the peach, plum, cherry, etc. The pome fruits contain 

 several seeds encased in parchment-like cells in a central core. 

 The drupe fruits contain a single seed in a single stony pit, 

 all within the edible pulp of the fruit. The leafy parts of 

 the flower of the pome types are borne upon the fruit. In 

 the drupe types they are borne on the flower stem below the 

 fruit. Horticulturists note other differences between these 



