FURTHER EXAMPLES 



139 



the conditions. In the litter of three, one was the image 

 of the mother, one was an Angora like the paternal grand- 



FIG. 26. Varieties of domestic pigeon arranged around the ancestral 

 rock-dove (Columba livia). (Based on Darwin's figures.) 



mother, and the third was a Himalaya like the maternal great- 

 grandmother, 



