16 



VICTOR E. SHELFORD AND W. C. ALLEE 



TABLE 2 



Showing the varying speeds of modification of the behavior of the golden shiner 

 {Abramis crysoleucas Mit. Habitat, stagnant ponds.). The rating of the controls 

 + 11 is based on 15 controls. For further details see table 1. 



The behavior of Hybopsis is further illustrated in chart 1, 

 Expt. 10, the data from which are included in the table. It 

 will be noted that in the reaction recorded in the chart the three 

 fishes first turned back after two invasions of the boiled water 

 and that turnings occurred more often than entrances after 

 fifteen trials of the boiled water. It will also be noted that the 

 entrances of the boiled water toward the end of the experiment 

 occurred only after some time had been spent in the untreated 

 water. In this case there was less activity in the control as 



