86 J. M. ESSENBERG. 



PLATE V. 



FIG. 25. Transverse section of retrogressive ovary in class i. X 80. 



FIG. 26. Transverse section of retrogressive ovary in class 2. X 140. 



FIG. 27. Transverse section of normal mature ovary. X 22.5. 



FIG. 28. Transverse section of retrogressive ovary in class 3. X 205. 



FIG. 29. Transverse section of oviduct of ovary in Fig. 28. X 115. 



Symbols : 



bv Blood vessel. 



etc Connective tissue coat. 



dfe Disorganized follicular epithelium. 



duo Disintegrating ovum. 



ee External epithelium of gonad. 



cpc Epithelial coat. 



epo Epithelium of ovarian cavity. 



fed Follicular epithelium of disintegrated ovum. 



oc Ovarian cavity. 



inc Muscular coat. 



o Ovum. 



oo Ob'cyte. 



ro Remains of disintegrated ova. 



