BY J. T. WILSOX AND C. J. MARTIN. 681 



tlie axis-cyliaders of medullated nerves supplied to this region; 7i, nuclei in 

 expansion of the primitive sheatli ^forming a capsule for k. Drawn ^^ ith 

 camera lucida. 



Fig. 6. — ( X 480 diameters). Transverse section of the neck of an 

 epidermal cylinder similar to but smaller than the one from 

 which fig. 5 was taken. .Stained with haematoxylin. This 

 section was taken in a region where the follicle was completely 

 surrounded by dermis, /. 



d, duct of sweat-gland, which is wider in this region; c, cuticular layer 

 of cells surrounding duct; a, epithelial plates (cf. fig. 2, a); 6^, epithelial 

 cells containing perinuclear pigment continuous with b" at the summit of 

 the dermal papilla; b~, malpighian layer of epidermis containing perinuclear 

 pigment; e, epidermis. 



Fig. 7. — ( X 320 diameters). Vertical section through bulbous base of 

 epithelial cylinder traversed by sweat duct ; showing knob-like 

 endings of medullated nerve fibres both within and without the 

 bulb. Stained by Freud's gold-chloride method. 



46 



