From exhibii, American 



Museum of Natural History 



"CRISSCROSS". SEX-LINKED INHERITANCE 



If a red-eyed male be mated with a white-eyed female, all the male ofTspriiif; will have white eyes and all the 



female offspring red eyes; if these be mated with one another, half of the male and half of the female offspring will 



have white eyes, the remainder having red eyes 



241 



