WONDERS OF THE MICROSCOPE 259 



of how the base or bulb of the hair is embedded 

 in the skin and passes out to the surface through 

 a kind ot Httle sheath. The human skin when 



Fii;. 179. A section cut Ihroua^h the skin of a niousu t<i 

 S[.o\v how the hairs originate from iiulbs lielow the 

 surface skin 



seen in section shows simikir hair dex'elop- 

 ment. 



The colour of the hair is derived from pigment 

 granules contained in a layer of cells between the 

 outer cuticle layer and the true skin. These 

 o-ranules are very minute and appear abundantly 

 in healthy hair, and are mostly arranged in lines 

 between the elongated and elastic cells of the 

 cortex or ex.terior of the hair. 



