PLANNIXG A NEW PLANT 207 



white fruit precisely like that of the maternal 

 ancestor. 



Such, it will be recalled, was indeed the 

 experience in the development oi" the new race 

 of white blackberries. 



To instill good qualities of fruit into the 

 inferior original berry, it was necessary to cross 

 with the large and well-flavored La^vton black- 

 berry. 



The immediate result was seemingly to oblit- 

 erate the white-fruiting tendency altogether. 



But a wide experience of similar instances led 

 me to continue the experiment, which for the 

 moment seemed to be carrying me away from 

 the ideal of a white blackberry ; and the principle 

 of reversion came to my aid in the next gener- 

 ation and gave, as ^vill be recalled, a berry 

 that combined the light color of one of 

 its grandparents with the size and flavor of 

 the other. 



As already suggested, it aids the memory, and 

 helps to give tangibility to the facts, to recall the 

 Mendelian phrase which speaks of blackness 

 versus whiteness in such a case as constituting 

 a pair of unit characters: naming blackness as 

 the dominant and whiteness as the recessive 

 feature; and which gives assurance that a fruit 

 which shows the recessive character of whiteness 



