Index of Subjects 



393 



White types, not albinos 



properties of 101 



dominant 101, 104, 145 



in poultry, various types 102 



recessive 145 

 Wild species, Mendelian phenomena in 



49 



Wrinkled seed 28 



Xanthoma 220 

 Xanthorhoe ferrugata 44 

 Xenia 30 



YELLOW 



in certain animals 115 

 mice, peculiar phenomena in 

 in fowls 1 20 

 discussion of 121 

 varieties of red moths 135 

 silk 137 



Zea, see Maize 

 Zygopetahnn 248 

 Zygote u, 1 6 



a double structure 56 



118 



