210 



MULTIPLE ALLELOMORPHS 



and in that in most cases the hybrid shows at the 

 same time the characters of each parent. Both of 

 these pecuharities occur in other cases, however, 



EC 



BI 



Fig. 52. — Four types, A, B, C, I, of Paratettix. Below are hybrids 

 between A and B, B and C, and B and /. (After Nabours.) 



as in Emerson's corn for instance, although nowhere 

 I)erhaps so strikingly as in Paratettix. 



In any attempt to decide between the two alter- 



