Role of Sight in Daily Life of Dancer 195 

 TABLE 34 CONTINUED 



FEMALES 



That covering the floor with smoked paper forced the mice 

 to relearn the path, in large measure, is evident from the 

 results of Column IV. An average of ten tests was necessary 

 to enable the mice to follow the path correctly. It is almost 

 certain, however, that the interference with the perfectly 

 formed labyrinth habit which this change in the condition 

 of the floor caused was not due to the removal of impor- 

 tant tactual sense data. 



As Column V shows, the number of errors in total dark- 

 ness is very small. Some individuals gave no sign of being 

 disturbed by the absence of visual guidance, others at first 

 seemed confused. I have given in the table the number of 



