. 7, 1921 



GENETICS: J. A. HARRIS ET AL. 



217 



68/0/2 14 IS 18 20 12 ?&amp;lt;t 2b 28 30 32 34 36 38 40 42 44 4G 48 SO 



DIAGRAM 1 



)rd. The shaded areas are determined as follows. The birds were 

 grouped into classes of five eggs range with respect to number of eggs 

 during the period of time used as a basis of prediction. The birds of 

 classes of five eggs range were further subdivided into those in which 

 ctual egg production was greater than the predicted and those in which 

 ie actual number was less than the predicted number. 4 The average 



