ng of menstruation, the first blooming of youth
is delayed in the subthyroid. The secondary sex traits as they develop
tend to be incomplete and to mimic those of the opposite sex. Yet in
adolescence too there may be a sudden change and reversal of the whole
process, a jump from the subthyroid to the hyperthyroid state. So a
girl who has been dull and lackadaisical, with no complexion and every
prospect of evolution into a wall flower, may be transformed into a
bright-eyed woman, generally nervous and restless, high colored, and
possessed of a craving for continual activity and excitement. Skin,
hair and teeth become of the thyroid dominant type. The heart
palpitates under the slightest stimulus, she perspires almost
annoyingly, heat and emotion are prostrating. If such a
transfiguration does not occur, the effect of the reconstructions
of puberty is to create a person with about the following
characteristics.

1. Height below the average
2. Tendency to obesity (toward middle age)
3. Complexion sallow
4. Hair dry--hair line high
5. Eyebrows scanty, either as a whole or in outer half
6. Eyeballs deep-set, lack lustre, in narrowed slits
7. Teeth irregular, become carious early
8. Extremities cold and bluish
9. Circulation poor. Subject to chilblains

Intellectually, these people vary enormously, depending upon which of
the other glands will enlarge to compensate for the deficiency of the
thyroid. If the growth of the skull has left a roomy sella turcica
for the pituitary to grow in, the intellect may be normal or even
superior, though energy is below par. If this is not possible and
the adrenals have to predominate, a lower, more animal and less
self-controlled type of mentality is produced.

In direct contrast to the subthyroid types is he who originally was
hyperthyroid. During childhood he is quite healthy, thin, but striking
robust, active, energetic, generally fair-complexioned with nose
straight and high bridged, eyes rather "poppy," teeth excellent,
regular, firm, white with a pearly translucent enamel. These children
are always on the go, never get tired, require little sleep. Seldom
will one of the classical children's diseases strike them, measles
perhaps, but no other. Adolescence for them, however, is more apt to
be stormy and episodic, adjustment to the new world of people and
things is much more difficult, wanderlust is acute. All an expression
of cells keyed up, charged with energy