14 



INHERITANCE IN RABBITS 



MATINGS OF SHORT-EARED RABBITS INTER SE. 



Several matings of short-eared rabbits inter se are recorded in table i. 

 They show great uniformity of result. The young differ little in ear- 

 length from their parents, which in no case differed from each other by 

 more than 5 mm. 



TABLE i. 



1 By adult is meant i year or more old. 



In mating i , the extreme deviations from the mid-parental 1 ear-length 

 are 6.5 mm. and +2.5 mm., the average deviation being only 2.5 mm. 

 The total range of variation is 9 mm. In mating 2, between brother and 

 sister, the extreme deviations are 4 mm. and + 6 mm., giving a total 

 range of variation of 10 mm. The average deviation from the parental 

 ear-length (no mm.) is, as in mating i, 2.5 mm. 



1 By mid-parental, as we shall use the term in this paper, is meant a magnitude exactly halfway 

 between the magnitudes of the respective parents. It is the mean of the parental magnitudes. 



