On the management of the hair and scalp / by George Hopgood.

  • Hopgood, George.
Date:
1860
Catalogue details

Licence: Public Domain Mark

Credit: On the management of the hair and scalp / by George Hopgood. Source: Wellcome Collection.

    12/86 (page 2)
    Physiologists suppose that each bulb commands a separate artery of its own, of course very minute. When a hair is forcibly pulled out, pain is produced from the sensibility of the bulb, which must therefore be in direct com- munication with a nerve, and, consequently, with an artery. The white knob at the lower extremity of the hair, and erroneously termed its root, is only the part inserted in the sac of the bulb; it is the first formation of the collective stumps growing together which con- stitute each separate hair; and one of these, pulled out, is not thereby destroyed, but will grow again. The hah', according to the analysis of the most experienced chemists, is composed of the following substances : 1—Animal matter; con- taining albumen and a very minute quantity of gelatine, in a hard form, as in the nails. 2—A white concrete oil; upon the proportion of this oil depends the smoothness or the harshness of the hair. 3—Another oil which gives the colour of the hair. 4—A small quantity of iron. 5—A few particles of the