96 



EVOLUTION AND ANIMAL LIFE 



beautiful snowy-white berries so nearly transparent that the 

 small seeds may be seen in them; the Japanese Golden May- 

 berry, a cross of the Japanese R. palmatus (with small, tasteless, 

 dingy yellow, worthless berries) and the Cuthbert, the hybrid 

 growing into treelike bushes, six to eight feet high, and bearing- 

 great, sweet, golden, semitranslucent berries which ripen before 

 strawberries; the Paradox, an oval, light-red berry, obtained in 

 the fourth generation from a cross of Ciystal White Blackberry 

 and Shaffer's Colossal Raspberry. While most of the plants 

 from this cross are partly or w r holly barren, this particular out- 

 come is an unusually prolific fruit producer. 



An interesting feature of Mr. Burbank's brief account, in his 



FIG. 62. Three walnuts: at left Japanese walnut, at right English walnut, 

 and in middle a hybrid of these two. (From photograph by Burbank.) 



"New Creations' 7 catalogue of 1894, of the berry experimenta- 

 tion is a reproduction of a photograph showing "a sample pile 

 of brush 12 feet wide, 14 feet high, and 22 feet long, containing 

 65,000 two- and three-year old seedling berry bushes (40,000 

 Blackberry X Raspberry hybrids and 25,000 Shaffer X Gregg 

 hybrids), all dug up with their crop of ripening berries.' 3 The 

 photograph is introduced to give the reader some idea of the 

 w r ork necessary to produce a satisfactory new race of berries. 

 "Of the 40,000 Blackberry-Raspberry hybrids of this kind 

 1 Paradox ' is the only one now in existence. From the other 

 25,000 hybrids two dozen bushes were reserved for further 

 trial." 



