INSTINCTS AND HABITS IN CHICKS 51 



This record was the cleanest and most promising so far, but 

 was offset by the results obtained from experiments conducted 

 concurrently upon no. lo. The latter chick, in a period of training 

 twice as long as that given to no. 12, failed to acquire a perfect 

 habit of response,, to orange. The preference trials in each case 

 were satisfactory. 



TABLE 11 

 Orange- White Reactions 

 Chick no. 10. Hatched 12/10, '07. Sex, M. 

 Series Date Right Wrong 



A and B Jan. 29 10 10 



1 " 30 5 5 



2 " 31 4 6 



3 : Feb. 15 5 



4 - " 3 4 6 



5 " 4 5 5 



6 " 5 4 6 



7 " 6 4 6 



8 - " 7 5 5 



9 " 8 6 4 



10 " 10 9 1 



11 " 11 8 2 



12 " 12 8 2 



13 " 13 9 1 



14 " 14 7 3 



15!.' " 15 9 1 



16 " 17 9 1 



Chick no. 8 was given more searching preference tests and 

 then trained on black-blue. 



TABLE 12 

 Black-Blue Reactions 

 Chick no. 8. Hatched 12/10, '07. Sex, M. 

 Series Date Right Wrong 



A 



B :-^-- 



C 



D 



