his nose especially has the definite bridge which
narrows it. The Mongol, like the Negro, has the hairless body and the
beardless face, but unlike him has lank straight hair on his head,
while his features are flattened and fore-shortened.

Upon the basis of these structural, functional and mental differences,
the qualitative and quantitative evolution of which in the race as in
the individual is guided by the glands of internal secretion, Keith
presents a very good case for the view that the white man is an
example of relative excess of the pituitary, thyroid, adrenal and
gonad endocrines. "The sharp and pronounced nasalization of the
face, the tendency to strong eyebrow ridges, the prominent chin, the
tendency to bulk of body, and height of stature in the majority of
Europeans" are the signs of pituitary dominance. Keith is also of the
opinion that "the sexual differentiation, the robust manifestations of
the male characters, is more emphatic in the Caucasian than in
either the Mongol or Negro racial types ... in certain negro types,
especially in Nilotic tribes, with their long stork-like legs, we seem
to have a manifestation of abeyance in the action of the interstitial
glands." As for the adrenal superiority of the white man, "it is 150
years since John Hunter came to the conclusion ... that the original
color of man's skin was black, and all the knowledge that we have
gathered since his supports the inference he drew. From the fact that
pigment begins to collect and thus darken the skin when the adrenal
bodies become the seat of a destructive disease we infer that they
have to do with the clearing away of pigment, and that we Europeans
owe the fairness of our skins to some particular virtue resident in
the adrenal bodies." Finally, as regards the thyroid, a comparison of
the face of a cretin with that of the Negro or Mongol tells the story.
A certain variety of idiocy, Mongolian idiocy, in which the face
simulates cretinism so closely as to deceive practised clinical
observers, is characterized by a Chinese cast of the features and
eyes, hence the name. And in the Bushman of South Africa, the cretin's
face is even more startlingly recalled.

There is every reason then for believing that the white man possesses
more of pituitary, adrenal, gonad, and thyroid internal secretions as
compared with the yellow man or black man. And since these endocrines
control not only physique and physiognomy, anatomic and functiona