SCIENCE 



Turning to the second year means we note 

 that for each of the eight months of the first 

 year used as a basis of selection for an in 

 crease of second year production, the second 

 year record of birds is higher if they laid dur 

 ing the special month under consideration in 

 the first year than if they did not lay in that 

 month. The differences between the groups 

 amount to about two dozen eggs or more per 



bird in five of the eight months considered. 

 It is clear, therefore, that so simple a 

 criterion as laying vs. non laying in the first 

 year may furnish a criterion of some value 

 for the selection of the birds to be retained 

 in the flock for breeding and for second year 

 production. 



J. ARTHUR HARRIS, 

 HARRY E. LFAVIS 



