USELESS HABITS IN TWO BRITISH NEWTS. 



167 



Table 1. — [continued). 



No. of Test. 



Time occupied. 



Route taken. 



10 



30 sec , 



r. 

 r. 



1, a, 

 r. 



r. 



1, a, 

 I, a, 

 r. 

 r. 

 r. 

 r. 

 r. 

 r. 

 r. 



1, a, 

 I, a, 





11 



52 sec. . 





12 



Interval of 20 min. 

 42 sec 



I, a, r. 



13 





14 



1 min. 20 sec 



2 min. 30 sec 



35 sec 





15 



r. 



16 



r. 



17 





18 



32 sec 





19 



1 min. 11 sec 



24 sec 





20 





21 



1 min. 52 sec 



1 min. 27 sec 



1 min. 4 sec 



6 min 





22 





23 





24 



1, a, r. 



1, a, I, a, r. 



25 







This table shows that the Newt had formed a correct r habit 

 at the end of trial 17, and it is worth remarking that it always 

 oriented itself by " nosing " the left corner, then turning con- 

 tinuously left to the right corner, and up the side into r, and 

 so out. The reason for the complete disintegration of the 

 habit at No. 24 was that it had started for the first time in that 

 trial to climb up the sides, and it apparently found the exercise 

 so stimulating that it continued to do nothing else afterwards ! 



Table 2. Newt, No. 2. 



No. of Test. 



Time occupied. 



Route taken. 



1 



4 min. 30 



30 sec. .. 

 2 min. . 

 59 sec. . 



5 sec 



sec 



Z, a, r. 



T. 



2 



3 





1, a, I, a, r. 

 r. 



4 





5 





r. 



6 





T. 



7 



T. 



8 





r. 



Interval of about twelve hours. 



9 



10 



2 min. 29 sec 



5 sec 



r (after hesitation). 

 r. 



11 



21 sec 



r. 



12 







