day; and aching heads will signalize the advance of neuralgia,
tubercle, and disease. So Nature punishes disobedience.

It is apparent, from these physiological considerations, that, in
order to give girls a fair chance in education, four conditions at
least must be observed: first, a sufficient supply of appropriate
nutriment; secondly, a normal management of the catamenial functions,
including the building of the reproductive apparatus; thirdly, mental
and physical work so apportioned, that repair shall exceed waste, and
a margin be left for general and sexual development; and fourthly,
sufficient sleep. Evidence of the results brought about by a disregard
of these conditions will next be given.

FOOTNOTES:

[3] Human Physiology, p. 546.

[4] As might be expected, the mortality of girls is greater at this
period than that of boys, an additional reason for imposing less labor
on the former at that time. According to the authority of MM. Quetelet
and Smits, the mortality of the two sexes is equal in childhood, or
that of the male is greatest; but that of the female rises between the
ages of fourteen and sixteen to 1.28 to one male death. For the next
four years, it falls again to 1.05 females to one male death.--_Sur la
Reproduction et la Mortalité de l'Homme. 8vo. Bruxelles._

[5] Lectures on Diseases of Women. Am. ed., p. 48.

[6] "Much less uncommon than the absence of either ovary is the
persistence of both through the whole or greater part of life in the