EGG PRODUCTION. 



77 



tings of the data in the first two columns of Table VII and the 

 corresponding frequency distributions for the "registered" birds. 





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I4-.5 205 26.5 32.5 385 44.5 5Q5 565 62.; 



EQQ PRODUCT/ON 



68.5 74.5 605 



Fig. 12. Diagram showing the tgg production during the 

 winter months (Nov. i to March i) of "registered" as compared 

 with "unregistered" pullets. The solid line denotes the "regis- 

 tered" and the broken line the "unregistered" birds. "Unregis- 

 tered" birds in 50 bird pens. 



The same thing is apparent from these diagrams as is brought 

 out by the figures in Table VIII. The lines showing the tgg 

 production of the "registered" birds fall generally to the left of 

 the lines for the "unregistered" birds, thus denoting the smaller 

 average production of the "registered." 



2. In respect to relative variability as measured by the 

 coefficient of variation, the differences between "registered" and 

 "uhregistered" birds are, with one exception, negative. This 

 means that (with the single exception noted) the "registered" 

 birds were somewhat more variable in egg production than were 

 the "unregistered." In other words, contrary to expectation, the 

 group whose ancestry had been most closely selected was actu- 



