PLATE 3 



DEVELOPMENT OF THE RECTUM 



FRANKLIN PARADISE JOHNSON 



Fig. 15 



Fig. 16 



EXPLAXATION OF FIGURES 



15 and IG Wax reconstructions of the epithelium of tli(> pars analis recti. 



15 Human embryo of 44.3 mm. H.E.C. 1611 . X 36. 



16 Human embryo of 65 nun. H. 55. X 36. 



52 



