Small Black Human Hair.

in that respect by the elongations or contractions of a human hair. The color of the hair e, a ma of cells in the axis of the hair, loaded with pigment. seems to depend on b, layer of epidermic cells resting upon it; c, layer of imbricated cells, forming the outer lamina, or cortez , of the hair; d, more bulky cells containing pigment; IMG:content-0499.png:[graphic]