126 



Heredity and Eugenics 



of plant breeders are using these methods to produce thou- 

 sands of new types annually. Most of them are worthless, 

 nearly all of them are no better than what are already 

 in commercial use, but the comparatively few that are 



FIG. 54. Hybrid combining the desirable qualities of the "Havana" and 

 'Sumatra" varieties. 



really superior repay the time and money spent a thousand 

 fold. I might add that it is the community at large that 

 is highly repaid, however, for the plant breeder, unlike the 

 inventor, never gets rich through his productions. 



