54 PISTILS AND STAMENS 



by crossing with some varieties than with others. (Fig. 59.) In 

 case of Sweet Cherries, when flowers of the Bing, a variety requir- 

 ing cross-polhnation, were pollinated with pollen from the variety 

 called the Knight, only a few fruits developed; while flowers 

 pollinated with pollen from the Black Republican produced 

 fruit abundantly. Obviously much of the success in orcharding 

 has to do with securing for each variety of fruits the best kind of 

 pollination. 



