





FIG. 14. SECTIONS OF FOUR SORTS OF EPITHELIUM, i, from the human 

 ureter, X 450 diams. ; 2, stratified ciliated epithelium from the respiratory 

 region of the human nose, X 500 diams. ; 3, ciliated epithelium from the human 

 ductus epididymidis, X 420 diams. ; 4, surface view of the pigmented epithelium 

 from the retina of a cat's eye, X 280 diams. After Sobotta. 



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