VII.] 



THE MULLERIAN DUCT. 



FIG. 71. 



217 



SECTION OF THE INTERMEDIATE CELL-MASS ON THE FOURTH 

 DAY. (From Waldeyer.) Magnified 160 times. 



m. mesentery. L. somatopleure. a', portion of the germinal 

 epithelium from which the involution to form the duct of 

 Muller (z) takes place, a. thickened portion of the germinal 

 epithelium in which the primitive ova O and o are lying. 

 E. modified mesoblast which will form the stroma of the 

 ovary. WK. Wolman body. y. Wolman duct. 



its course its growing point lies in a bay formed by the 

 outer wall of the Wolffian duct, but does not become 

 definitely attached to that duct. It seems however 

 possible that, although not actually split off from the 



