61 



The eggs were, with the exception of Nos. 17 and 517, rather under 

 the average weight, and they were not uniform in weight. The greatest 

 variation appears to be in the quantity of shell, although this may be 

 partly due to the fact that, while the white of the egg was drained away 

 as completely as possible, the shell was not washed to remove the last 

 traces of the albumen. This may also account for the slightly high pro- 

 portion of shell. 



Regarding the distribution of the phosphoric acid and lime, it is evi- 

 dent that the yolk contains the largest proportion of the phosphoric acid, 

 and the shell the most lime, while, as would naturally be expected, the 

 white of the egg contains but little of these constituents. 



To bring out more clearly the average weight of the eggs and the 

 distribution of the lime and phosphoric acid in the several parts, the aver- 

 age results obtained from the analyses of the different eggs from the same 

 hen are given in the following table : 



Table XXIV. Average Percentage Amount of Lime and Phosphoric Acid 



in Eggs from Different Hens. 



The above average results show extremes of from 44.27 to 65.28 

 grams in the average weight of eggs for different hens, a difference of 

 over 21 grams, and a variation of nearly 10 per cent, in the amount of 

 the white of the egg. 



The following table shows the absolute average weights of the dif- 

 ferent parts of the eggs and of the phosphoric acid and lime in the shell 

 and in the contents, that is, in the yolk and white combined : 



