HEREDITY OF WILDNESS AND SAVAGENESS IN MICE 



29 



than that for the fourth and fifth tests of Group 1. The differ- 

 ences in the grades of these wild individuals are so slight and 

 the number of mice so small that these results cannot be con- 



TABLE 17 

 Summary of Results of Group 2, Parental Generation, Wild, Tested Daily 



Average number tests, 

 Range of tests, 7 

 Average age in days: 

 First test, 37 

 Fifth test, 41 

 Sixth test, 70 

 Seventh test, 88 



6 P (Wild) 

 males and 

 females 



Average number tests. 

 Range of tests, 7 

 Average age in days: 

 First test, 37 

 Fifth test, 41 

 Sixth test, 70 

 Seventh test, 88 



3 P (Wild) 

 Males 



Average number tests. 

 Range of tests, 7 

 Average age in days: 

 First test, 37 

 Fifth test, 41 

 Sixth test, 70 

 Seventh test, 88 



3 P (Wild) 

 Females 



7_ 



First test 



Average 2 and 1 . . . . 



Average first 5 



Average 3, 4 and 5. . 



Fifth test 



Average 6 and 7 . . . . 



7_ 



First test 



Average 1 and 2 . . . . 



Average first 5 



Average 3, 4 and 5. . 



Fifth test 



Average 6 and 7 



7_ 



First test 



Average 1 and 2 . . . . 



Average first 5 



Average 3, 4 and 5 . . 



Fifth test 



Average 6 and 7 . . . . 



WILDNESS 



Distribution of mice 

 in grades: 



Av. 1 



5.0 

 5.0 



4.83 

 4.66 



4.5 

 4.25 



5.0 



5.0 



4.66 



4.44 



4.0 

 4.0 



5.0 

 5.0 

 5.0 

 5.0 



5.0 



4.5 



SAVAGENESS 



Distribution of mice 

 in grades: 



Av. 1 2 3 4 5 



4.5 

 4.33 



4.11 

 4.2 



4.0 

 3.91 



4.0 



3.66 



3.86 



4.0 



4.0 



5.0 

 5.0 



4.53 



4.22 



4.0 

 4.5 



sidered of very great value. The chief significance of tables 16 

 and 17 is to give an example of the reactions of wild mice to 

 the conditions of the experiment and thus furnish a basis for 

 the more accurate judgment of the hybrids. 



