No. 529] 



A DOUBLE HEN'S EGG 



57 



torted, owing to the pressure exerted upon it by the ap- 

 proximation of the hard-shelled egg. The albumen 

 closely adhered both to the egg and to the yolk, but much 

 of it was of a liquid nature, as was indicated by the ease 

 with which it flowed out of the cut first made in the inner 

 membrane. 



The accompanying diagram will make clear the rela- 

 tion of the various parts of this interesting monstrosity 

 (Fig. 4). The inclosed egg lies toward the pointed end 



of the inclosing egg, and its long axis meets the corre- 

 sponding one of the double egg at an oblique angle. On 

 account of this inclination of the inclosed egg its pointed 

 end lies nearer to the blunt than to the pointed end of the 

 inclosing egg. The inclosed yolk occupies the blunt end 



pressure. The chalazae are but poorly developed, but 

 the axis formed by a line passing through their points 

 of attachment to the vitelline membrane approximately 

 coincides with the long axis of the inclosing egg, showing 

 that the yolk has maintained its original orientation. 



