THE STEM FINALLY 

 SELECTED 



The direct-color photograph print 

 opposite shows the stem of the first true 

 white blackberry. By comparing its 

 color with the color of other stems 

 shown,, it will be seen that the dark, 

 purplish brown of the black Lawton has 

 given way to the light greenish stem of 

 the final white blackberry. The color of 

 the stem, it should be understood, is only 

 a guide to the color of the berry which 

 is later to be produced. It does not 

 form the basis of an absolute, fixed law, 

 for outcroppings of old heredity some- 

 times appear in the stem, but not in 

 the fruit. The selection by the stem 

 is, however, of sufficient certainty to 

 warrant its use in such experiments as 

 the production of the white blackberry. 

 Where it failed as a guide in three or 

 four cases, it succeeded in hundreds or 

 thousands of cases. 



