DEVELOPMENT OF THE RECTUM 



FRANKUN PARADISE JOHNSON 



PLATE 7 



- ^c.f. 



(jlAntrm. 



a. 



•4I 



ep.iv. 



Fig. 22 



Fig. 21 



ep.w. 



Fig. 23 



ext.spli. 



z.int. 



Fig. 2U 



Fig. 25 



57 



