5- 



COAT CHARACTERS IN GUINEA-PIGS AND RABBITS. 



The pairs recorded by Darbishire (p. 35, Table E, middle section) 

 which fall into these respective groups are as follows (omitting only 

 one pair which produced 3 albinos and which might fall into either 

 Group I or Group III) : 



The expected relative frequencies of these four sorts of pairs are as 

 follows, the frequencies observed being given in a parallel column : 



From this experiment we get additional evidence of the existence of 

 the four hypothetical classes of dark-eyed pigmented individuals, (i) to 

 (4), page 48, and of their occurrence in something like the theoretical 

 proportions. Still further support for this view is afforded by the third 

 section of Darbishire's Table E, page 35, which includes matings of 



