IIO MAINE AGRICULTURAL EXPERIMENT STATION. I9H- 
§ 
2. Among the birds which began to lay in the fall there is 
no relation between the number of eggs laid and the time of 
hatching or the exact date of the first egg. 
3. Among the whole flock there is no relation between the 
mean size of the egg and either the time of hatching or the 
time of laying the first egg. 
4. Correlations calculated between body weight and number 
of eggs and size of eggs, and between number of eggs and size 
of eggs were all significantly zero. 
Autopsy data were taken on the thirteen birds which com- 
pleted their second year. The number of birds is too small for 
statistical analysis. They show an apparent relationship be- 
tween the size of the inactive oviduct and the time which has 
elapsed since the last egg and the amount of yolk present in the 
ovary. The size of the active oviduct appears to be related to 
the body size. It is not possible to determine whether or not 
there is a relationship between the size of the active oviduct and 
the size of the egg. 
The: Interrelation oe the Dimensions, the Shape, Size of 
Egg and the Size and Proportion of the Parts. 
The individuality of the birds in respect both to the mean . 
size and to the amount of variation of each egg character was 
discussed in preceding paragraphs. In this discussion it was 
noted that there was a general relationship between the various 
characters, that is when an individual laid large eggs her char- 
acterisitc egg was both long and broad and each one of the 
component parts was relatively large. It was also noted that 
the eggs of an individual evidently varied coincidently in both 
diametral dimensions since they were less variable in either 
dimension than in size. It was further noted that within an 
individual there was a compensatory variation in the size of 
the parts since the variation in the whole egg is less than the 
variation in the parts. 
The purpose of the present part of the paper is to show the 
interrelation or more strictly correlation of the various egg 
characters within the eggs of each of the several individuals. 
The results of an analysis of the data may be summarized as 
follows : 
