112 MAINE AGRICULTURAL EXPERIMENT STATION. I914. 



12. 'The correlation between either of the two large parts 

 and the whole egg when the other part remains constant is high 

 and shows insignificant individual differences. The albumen- 

 weight correlation is slightly* higher than the yolk-weight 

 correlation. 



13. The correlation between albumen and yolk is higher than 

 the correlation between either of these and shell. In general 

 the albumen shell correlation is higher than that for yolk and 

 shell. The range of correlation for any of these pairs of char- 

 acters, however, varies in different birds from insignificance to 

 high correlation. 



14. In eggs of the same weight any two parts are negatively 

 correlated. The yolk-albumen correlation is highly negative 

 and the different individuals show little variation in the value 

 of the coefficient. The yolk-shell and albumen-shell correla- 

 tions are significantly negative for most individuals but the 

 value of the coefficients for the different individuals varies 

 greatly. 



15. Length and breadth are positively correlated with the 

 weight of each part of the egg. When there is a significant 

 dift'erence between the correlation of length and any part ana 

 the correlation of breadth and the same part the breadth corre- 

 lation is higher. t There is, however, a great deal of individual 

 variation in the degree of these relationships. 



16. Albumen and yolk correlations with either dimension 

 are higher than the shell correlation. Albumen correlations are 

 significantly higher than yolk correlations for several individ- 

 uals. The reverse is true in only one case. 



17. In eggs of the same weight the correlation of either 

 dimension with any part is often not significant. The different 

 birds show a great deal of variation in these coefficients. The 

 most usual relationship is for breadth to be positively correlated 

 with yolk and negatively correlated with albumen and shell. 



An Analysis oe the Variation Among thk Eggs oe the 



Same Bird. 



It has been shown that while the eggs of an individual 

 resemble each other more closely than do eggs forming a 



* This difference mqy not be significant. 



t There are two exceptions to this statement. 



