20 BREEDING 



Suffice it for the present that the actual results, 

 so far as we have considered them, of crossing a 

 tall with a dwarf pea stand out in unexpected sim- 

 plicity and orderliness against the vague and, as we 

 have seen, often contradictory expectations based 

 on the notions of heredity which were current when 

 Mendel's results were discovered. 



