88 LABORATORY METHODS OF 



in the palms of the hands and soles of the feet. The 

 hair consists of three divisions: the shaft, that part 

 above the skin; the root, that part in the skin; the 

 bulb, that part from which the hair grows in fact, 

 it is a part of the root. The hole in which the hair 

 rests is called the follicle. The shaft consists of three 

 layers : the corticle, cortical and medulla. The cuti- 

 cle is the outermost covering and consists of epithelial 



L. S. HUMAN HAIR. 



1, cuticle; 2, inner root sheath; 3, Henle's layer; 4, me- 

 dulla of hair; 5, papillae of hair; 6, hair bulb; 7, vessels of 

 hair. 



