HEREDITY OF WILDNESS AND SAVAGENESS IN MICE 



15 



apparent in table 3 naturally maintain to some extent in the 

 results of each series. There are, however, some differences 



TABLE 3 

 Summary of Results for the Three Generations of Both Series 



Average number tests, 4.46 

 Range of 



tests, 2-5 First test 



Average age in days: 



First test Average 1 and 2 , 



35.27 



Last test, 



79.36 



294 Fi 



Males and 



females 



Average all 



* (285) 

 Average 3, 4 and 



5 



Last test 



Average number tests, 4.70 

 Range of 



tests, 2-5 First test 



Average age in days: 



First test Average 1 and 2 



40.99 

 Last test, 92.39 



Average all .... . 



410 Fo 



Males and 



females 



*(405) 



Average 3, 4 and 



5 



Last test 



Average number 



tests, 4.83 First test 



Range of tests, 2-5 

 Average age Average 1 and 2 



in days: 



First test, 38.09 

 Last test, 



5.71 



164 Fs 



Males and 

 females 



Average all 



*(162) 



Average 3, 4 and 

 5 



Last test 



Distribution of mice in grades: 



Av. 



3.95 

 3.79 

 3.49 



3.25 

 3.16 



3.89 



3.73 

 3.50 



3.02 

 2.81 



3.60 



3.80 



3.48 



3.25 

 2.98 



12 3 4 5 



128 



117 



114 



87 

 192 



164 

 142 



142 

 163 

 135 



181 



201 

 159 



114 

 89 



102 



110 

 19 



SAVAGENESS 



Distribution of mice in grades: 



Av. 12 3 



4.01 



3.74 

 3.13 



2.63 

 2.45 



4.09 



3.72 

 3.26 



2.63 

 2.13 



4.07 



3.80 



3.40 



3.13 

 2.91 



18 

 101 



85 



71 



126 



92 



74 

 127 



107 

 106 



101 

 131 



75 



128 



154 



117 



103 

 83 

 26 



20 



23 



170 



152 



45 



40 

 39 



82 



53 



28 



30 

 41 



* The number of mice that received three or more tests. 



to be noted in a comparison of the two series. The averages 

 of the first test and of the first and second tests for wildness in 

 the Fi and also in the F2 of both series are practically equal, 



