726 



COMPARATIVE ANATOMY 



pushed their way further and further back so that they have not only 

 passed through the submucosa and musculosa, but have gone far beyond. 

 The liver and pancreas are good examples of those which have left the 



III. 



Fig. 427. 



I. Diagrams to show formation of greater omentum in mammals and the 

 fusion of the mesogaster and the mesocolon. A, early stage in which the mesogas- 

 ter is beginning to form a bag at g. B, the mesogaster is drawn posteriorly, into a 



