Epidermis. 



Cells of the hair canal. 



FIG. 366. VERTICAL SECTION' OF THE 

 SKIN OF THE GLUTAEAL REGION 

 OF A HUMAN FETUS OF FIVE 

 MONTHS. X 232. 



Hair matrix. 



m 



Hyaline membrane. 

 Papilla. 



FIG. 367. VERTICAL SECTION OF THE 

 SKIN OP THE' BACK OF A HUMAN 

 FETUS OF FIVE AND A HALF 

 MONTHS. X 230. 



Tangential section of the outer sheath. 



\ 

 Cornified inner sheath. 



fe&S- 



,4$ * !* *-^'* 



Cell nuclei of the sheath cuticle, 

 of 



TD ^SF ^s-~*~ 

 '#%/*&*' 



* ^K 



^ 



v . 



Inner f Huxley's layer I J&Sf /}.'W ' V*i* 



fiStHjSfiU. jr.& 



*f~' 



Arrector muscle. 



Hair matrix. 



FIG. 368. VERTICAL SECTION OF THE SKIN OF THE FOREHEAD OF A HUMAN 

 FETUS OF FIVE MONTHS. X 230. Differentiation of the sheaths of the hair. 



318 



