No. 598] INHERITANCE OF EYE PATTERN 579 



A considerable number of plants in these plots showed 

 that the seed had been cross-pollinated by bumble-bees the 

 year before. Among the plants in the Yellow Eye plots 

 there were a number which bore typical piebald beans 

 similar to that shown in Fig. 3. Some of these piebald 

 plants were harvested separately and their progeny con- 

 tinued in a small way inside a screened cage. By the 

 spring of 1915 it had been ascertained thai a cross be- 

 tween an Improved and an Old-Fashioned Yellow Eye 

 resulted in such a piebald pattern. Accordingly a con- 

 siderable number of these piebald beans were grown in 

 1915. The following paper is based upon the data from 

 these natural hybrids. 



Table I gives the detailed data relative to the offspring 



TABLE I 



