LIST OF ILLUSTRATIONS 



FACING 

 PAGK 



Potatoes growing upon a tomato vine after grafting upon 



the potato root . . . . . .85 



Aerial potatoes growing upon a potato cion grafted upon a 



tomato plant . . . . . .92 



A rare two-petaled hybrid seedling lily . . .99 



The plumcot, created from the plum and apricot. A rare 



new fruit . . . . . . .110 



The "Climax," one of the rarest plums produced . .110 



The development of the plum. The two larger ones are 



seedlings of the other two . . . .117 



The Giant plum, not only of largest size but of great rich- 

 ness and prolific in bearing . . . .124 



The sugar prune, larger, sweeter, earlier and more pro- 

 ductive than the older prunes . . . .131 



One of the many rows of seedling Shasta daisies from 

 which selection is being made. The rows are seven 

 hundred feet long . . . . .142 



One of the "Shasta" daisies. The blossoms are from four 



to six inches in diameter . . . .149 



Fluted daisies, one of the many curious forms developed 



in the production of the Shasta daisies . .156 



What the thornless cactus will displace a hint of desert 



conditions . . . . . .163 



The cactus in the foreground is the ordinary thorny kind. 

 Those in the rear are the thornless ones of the same 

 species ....... 174 



Cactus tests. Thornless, hybrid seedling Opuntias, now 

 eight weeks old from seed. They will be transplanted 

 later, after rigid selection . . . .181 



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