

^-1 ( - 



^r7M- 



ir^^ 



k«k 



^4 



'-■'. 





-^"^'^^-A 

 -^' 





..^-:^^^^^^^ 



'^..^^-^//i?( 



Vertical section through the skin of the lower lip (after 

 Thiersch), a. Horny lamina of the epidermis, which is con- 

 tinued into the hair-sacs as the inner root-sheath ; h. Seba- 

 ceous glands; c. Sweat-gland; cZ. Vessels ; e. PapilljB of 

 the roots of the hair. 



22 



