PLATE 3 



EXPLANATION OF FIGURES 



23 Wax reconstruction of the epithelium of the transverse colon. Human 

 embrj'o of 99 mm. X 89. 



24 Wax reconstruction of the epithelium of the transverse colon. Human 

 embryo of 140 mm. X 89. 



25 Wax reconstruction of the epithelium of the transverse colon. Human 

 embryo at birth. X 178. 



230 



