STUDY OF SELECTIONS FOR SIZE, SHAPE, AND COLOR OF HENS' EGGS 261 



Index 



75 



65 



Month 1st 



9th 



10th 



llth 



FlG. M. MONTHLY VARIATION IN SHAPE OF EGGS PRODUCED DURING A PERIOD OF SIX 



YEARS 



The figures in parenthesis designate the number of birds available for the respective calculations 



The curve representing the birds having a life mean of 60-65 does not lie entirely within that range 



because the whole six-years data on which the life mean is based is not available in monthly means for 



this chart 



