LUTHER BURBANK 



It is only by constantly bearing these divergent 

 pairs of qualities in mind that any experimenter 

 can hope to advance toward the production of an 

 ideal fruit or flower or vine. And it has always 

 been so. 



Old Wine in New Bottles 



But there can be no question that the new 

 terminology, as used by present day biologists, 

 serves to give precision to the ideas of the plant 

 experimenter, and enables him to analyze the 

 results of his experiments in more precise terms 

 than have hitherto been available. 



It will be convenient, therefore, and probably 

 helpful to the reader, in making precise reference 

 to some of the experiments in plant breeding 

 already detailed, with special reference to the 

 possibility of fixing the type of new races, if we 

 discuss the matter in the new terminology. 



It will at once appear that when a plant 

 developer attempts to fix a certain type, he is 

 fundamentally changing his point of view. Hith- 

 erto he has been concerned to make plants vary, 

 in order that he might seize on new forms, and 

 use theni as material for developing the type at 

 which he aims. And his success in developing a 

 new race is largely dependent upon the extent to 

 which he has been able to induce the plants with 

 which he experiments to vary. 



[238] 



