allest
circumference of testicle, the fewest number of men with glans
penis uncovered, the largest number of infantile voices, the
largest proportion of blue eyes and fair hair, the smallest
average height, weight, and chest circumference, while in all
these respects the men with hairy bodies were at the other
extreme. It has been known from antiquity that in men early
castration affects the growth of hair. It is now known that in
women the presence or absence of the ovary and, other glands
affects the hair, as well as sexual development. Thus Hegar
(_Beitraege zur Geburtshuelfe und Gynaekologie_, vol. i, p. 111,
1898) described a girl with pelvis of infantile type and uterine
malformation who had been unusually hairy on face and body from
infancy, with masculine arrangement of hair on pubes and abdomen;
menstruation was scanty, breasts atrophic; the hair was of lanugo
type; we see here how in women infantile and masculine
characteristics are associated with, and both probably dependent
on, defects in the sexual glands. Plant (_Centralblatt fuer
Gynaekologie_, No. 9, 1896) described another girl with very small
ovaries, rudimentary uterus, small vagina, and prominent nymphae,
in whom menstruation was absent, hair on head long and strong,
but hair absent in armpits and scanty on mons veneris. These two
cases seem inconsistent as regards hair, and we should now wish
to know the condition of the other internal glands. The thyroid,
for instance, it is now known, controls the hair, as well as do
the sexual glands; and the thyroid, as Gautier has shown
(Academie de Medecine, July 24, 1900) elaborates arsenic and
iodine, which nourish the skin and hair; he found that the
administration of sodium cacodylate to young women produced
abundant growth of hair on head. Again, the kidneys, and
especially the adrenal glands, influence the hair. It has long
been known that in girls with congenital renal tumors there is an
abnormally early growth of axillary and pubic hair; Goldschwend
(_Praeger medizinische Wochenschrift_, Nos. 37 and 38, 1910) has
described the case of a woman of 39, with small ovaries and
adrenal tumor, in whom hair began to grow on chin and cheeks.
(See also C.T. Ewart, _Lancet_, May 19, 1915.) Once more, the
glans hypophysis also affects hair growth and it has been found