The Long and the Short of It 



No one unfamiliar with practical horttcultuTe would sus- 

 pect thai these two pears were grown from seeds of the same 

 fruit, Theji illustrate the strangely varied hereditary factors that find 

 lodgment in the germ cells of a cultivated fruit. And of 

 course they furnish material for selective breeding 

 through which new varieties mag be developed. 



