PLATE 4 



EXPLANATION OF FIGURES 



6 Ringwulst showing varicose nerves. X 140. 



7 Ringwulst showing detail of structure. X 750. 



8 Detail of trabeculae in lower sinus showing nerves. X 750. 



9 Main sensory nerve entering from below; a, superior swelling of root sheath 

 where the characteristic endings seen in figure 11 have their greatest develop- 

 ment; 6, ringwulst; c, one of the chief divisions of the nerve. X 140. 



10 Nerve in papilla. X 100. 



11 Tactile menisques. Over each of these leaf-like expansions lies a large 

 round cell which does not show with this stain. X 533. 



12 Intra-epithelial endings; n, nerve fiber running outside the glassy layer; h, 

 intra-epithelial endings in outermost layer of the outer root sheath from the same 

 fiber; c, menisque outside the glassy layer; d. glassy layer; e, epithelial cells of 

 outer root sheath;/, outer root sheath. X 533. 



13 Nerve ring about neck of follicle; (i. nerves from dermal plexus running 

 down to form nerve ring; h. sebaceous gland; c. nerve ring. X 140. 



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