(TTANKors SKNSII'.IUTY 



25 



\\here there an- hairs, represent ing, according l,u v. l-'n y, ;il>uiit 

 <)f) per cent of tin- total cutaneous area, the 

 various corpuscles we have referred to are not 

 aliment, but become less tVe(|uenfc, and are 

 further apart in proportion as cutaneous sensi- 

 bility in its different forms is less acute. To 

 compensate for this the hairy parts of the skin 

 contain a specially important form of nerve- 

 ending, which is absent in other regions this 

 is the nerve-plexus, which can be seen round 

 the hair follicles beneath the mouth of the 

 sebaceous glands. Arnstein (187(5) with the 

 gold chloride method first successfully demon- 

 strated the nerve - endings around ordinary 

 hairs. He saw that after reaching the hair- 

 follicle the medullated fibres lose their medul- 

 lary sheath, divide, and give rise to a series of 

 annular and longitudinal fibrils. The latter 



Fio. 15. Hare variety of 

 Paciniiin corpuscle. 

 (Huflini ;iiid Sfaiiieni.) 



c.t. 



PlG. 10. Kull'mi's corpnscli', showing iici-ve-libi>-> i-iili-rin.u from the si.le. (Kntlini.) '<.--., blood 

 c:i i>i Maries ; n.v., IKTVI- Hidings ; ('., <-ii]>.>ul'- : c.t., nmnrrtive tissni-. 



are highly varicose and more external ; they rise along the hyaline 

 layer towards the surface of the skin, and terminate in wide disc- 



