Table 3.- 



A PHYSIOLOGICAL CHARACTER. 



Summary of selection data by broods for Line 695 plus. 



29 



» This is the original brood from which selections were made for the beginning of both the plus and 

 minus strains. 



b Mean reaction-times in italics are those for which there is a corresponding mean for a brood tested on 

 the same day in the minus strain. 



c Selection was repeated from the later brood because of the loss of the earlier brood. 



