256 NATURAL THEOLOGY. 



A A, is the white of the egg ; b, the yolk ; c c, the 

 treddles or chalazes ; that tough matter which we 

 find in eating an egg little boiled. Each of these 

 bodies is connected with the white, and attached 

 at a point to the yolk. The yolk being, as it were, 

 anchored at these two points, and the attachments 

 being below the centre, and the yolk being lighter 

 than the surrounding white, it revolves like a buoy, 

 and the cicatricula containing the embryo d, is 

 thus kept always uppermost. 



If "the chicken roosting on its perch be related 

 to the mass of the globe and the earth itself," as 

 our author has affirmed, what may we say of the 

 revolution going on within the egg ? 



