is more
delicate than man's. And so on.

Now what have we to say regarding these sexual differences in the case
of children? During the age which we have defined as the first period of
childhood, except in the matter of the genital organs, we can detect
hardly any important bodily characters distinguishing the sexes. Still,
even at this early age some differences have been recorded. Thus, the
average weight of new-born girls is less than that of new-born boys, the
figures given by Stratz[12] being, for boys, 3500 grams (7.7 lbs.); for
girls, 3250 grams (7.15 lbs.). According to a very large number of
measurements, the mean length of the new-born girl is somewhat less than
that of the new-born boy, the difference amounting to nearly 1 cm.
(2/5ths inch). Craniometric records, taken at the end of the first
period of childhood, exhibit differences between the sexes; in general,
the measurements show that the girl's head is smaller than the boy's in
respect both of length and breadth. Further, dynamometric records, taken
from children six years of age, have shown that the grasp in girls is
less powerful than in boys. But if we except such differences as these,
which relate rather to averages than to individuals, and which,
moreover, are for the most part demonstrable only during the latter part
of the first period of childhood, we find that, apart from the
reproductive organs, very little difference between the sexes can be
detected during the first years of life. Many investigators have been
unable to confirm the assertion that even in the first year of life the
hips are more powerfully developed in girls than in boys. Fehling,[13]
however, declares that as early as the fifth month of intra-uterine
life, sexual differences manifest themselves in the formation of the
pelvis. However this may be, it is beyond question that during the
earlier years of the first period of childhood the differences between
the sexes are comparatively trifling. But towards the end of this
period, sexual differentiation becomes more marked. According to Stratz,
it is at this time that the characteristic form of the lower half of the
body develops. The thighs and the hips of the young girl exhibit a
somewhat more marked deposit of fat than is seen in the boy of the same
age. To a lesser extent the same is true of the calves. It is often
assumed that even in very early childhood the sexes can be distinguished
by the formation of the face. The girl's