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EARL W. BENJAMIN 



ordinarily lay large eggs, and vice versa; this probably accounts for the low 

 correlation in studies of mixed flocks, while the study of separate matings 

 shows more definite results. The heavy curve for line 3916F in figure 19 

 represents the record for the bird whose early pullet daily record is shown 

 as 8882F in figure 18. 



The photographic record, figure 20, shows the relative sizes of eggs 

 produced by line 8224F, one of the largest lines, and by line 3916F, one 

 of the smallest lines. The difficulty of observing the fine differences in 

 size, except by careful measurements, is seen from this figure. Under 

 line 3916F is shown another record of the production of 8882F. 



20 24 28 1 5 9 13 17 21 25 29 2 6 10 14 18 22 26 1 5 9 13 17 21 25 29 2 



FIG 



January February March April 



21. VARIATION OF SHAPE OF SUCCESSIVE EGGS LAID DURING EARLY PULLET 



PRODUCTION 



The squares blocked in black indicate the days on which eggs were laid by the respective pullets 



In figures 21 and 22 are shown the daily and weekly fluctuations of 

 shape. A photographic record of two of the first-year inheritance results 

 for the shape character is shown in figure 23. Both of the lines shown in 

 figure 23 are shown also in figure 22. Neither the shape nor the size of 



