230 LUTHER BURBANK 



mealy state. Others were about halfway between 

 the two species in size, color, quality, growth, and 

 other characteristics, both of trees and fruits in 

 all variations. 



But among the second-generation seedlings 

 raised from these hybrids some fairly good apples 

 were produced. In form, some almost duplicated 

 the Gravenetein itself; very few of them resem- 

 bled the true wild crab type, except that nearly 

 all had a certain crablike acidity and lack of 

 flavor. 



Some of these hybrids are still growing on my 

 Sebastopol farm. No one of them gives promise 

 of being worthy of introduction, but it is not un- 

 likely that something of value may be developed 

 from this stock by further hybridizations and 

 selections. The wild crab has certain qualities of 

 hardiness and prolific bearing that might be of 

 value in combination with the fruiting qualities 

 of some cultivated variety. This, at all events, 

 is a line of investigation that offers opportunity 

 for further tests. 



Doubtless the most interesting of these hy- 

 bridizing experiments with the apple tree are 

 those in which this species was crossed with the 

 quince and with the pear. 



I have grown numerous seedlings from a cross 

 of the apple and the common quince, Cydonia 



