HEREDITY OF WILDNESS AND SAVAGENESS IN MICE 



45 



attained the higher grades, according to the averages of all the 

 grades, and the females, when the averages of the last three 

 tests are considered, however,, the females are assumed to be 

 the more savage or wild, as the case may be, since the height 

 of the grades of the females, though not so great in the first 

 two tests as that of the males, was more nearly maintained 

 throughout the five tests. 



TABLE 31 



Summary of Results of Second Generation Hybrids, Fo, of Series B, from Matings of Parental 

 Generation, Tame Female with Wild Male 



Average number tests, 

 Range of tests, 4-5 

 Average age in days: 

 First test, 38.01 

 Last test, 85.82 



66 Fob Males 

 and Females 



Average number tests, 

 Range of tests, 5 

 Average age in days: 

 First test, 38.36 

 Last test, 88.36 



30 Fob 

 IMales 



Average number tests, 

 Range of tests, 4-5 

 Average age in days: 

 First test, 37.72 

 Last test, 83.58 



36 Fob 

 Females 



4.97 



First test 



Average 1 and 2 . . 



Average all 



Average 3, 4 and 



5 



Last test 



5 



First test 



Average 1 and 2. . 



Average all 



Average 3, 4 and 



5 



Last test 



4.91 _ 



First test 



Average 1 and 2 . . 



Average all 



Average 3, 4 and 



5 



Last test 



Distribution of mice 

 in grades: 



Av. 



4.21 



3.99 



3.72 



3.54 

 3.31 



4.2 



3.86 



3.64 



3.48 

 2,. 32, 



4.22 



4.09 



3.79 



3.59 

 3.30 



1 



SAVAGENESS 



Distribution of mice 

 in grades: 



Av. 1 



4.63 



4.42 



3.90 



3.55 

 2.96 



4.63 

 4.43 

 3.79 



3.36 



2.7 



4.63 



4.98 



3.99 



3.69 

 3.2 



D. General summary of individual inheritance ajid the results 

 of selective breeding in the hybrid generations of both 



series 



In this section of the study the attempt is made to indicate 

 the differences in the inheritance of individual mice rather than 



