AN ANALYSIS OF THE EFFECT OF SELECTION. 



13 



The "new" series, which was carried on at a constant temperature, 

 shows remarkably little fluctuation. Of the two re versed-selection 

 series, one suggests a positive result, but was not carried on long 



TABLE 9. 1002, Inbred Plus Line. 



Includes reversed selection, that is, not included in the remainder of these data. 



enough to be significant, and the other was clearly without effect. 

 The line was now presumably uniform, and not capable of modifica- 

 tion through further selection. 



CROSSBRED PLUS SERIES. 



The material for this series came from the following sources: Cul- 

 tures 902, 926, 1006, 1081 of the 864 inbred plus line; culture 1072 of 



