physiological knowledge spreads.

Delayed marriage still has its influence on the birth-rate, but with
the spread of the same knowledge, that influence is a distinguishing
quantity.

Delayed marriage under Malthusian principles would exert a potent
influence in limiting the births, because early marriages were, and,
under normal circumstances would still be, fruitful.

In the 28th annual report relating to the registration and return of
Births, Marriages and Deaths in Michigan for the year 1894 (p. 125), it
is stated that "The mean number of children borne by females married at
from 15 to 19 years of age inclusive, is 6.76. For the next five year
period of ages, it is 5.32, or a loss of 1.44 children per marriage,
this attending an advance of five years in age at marriage."

Voluntary effort frequently expresses itself in the practice of
abortion. Many monthly nurses degenerate into abortionists and practise
their calling largely, while many women have learned successfully to
operate on themselves.

The extent to which this method of limiting births is practised, and the
absence of public sentiment against it, in fact the wide-spread sympathy
extended to it, may be surmised from the facts that at a recent trial of
a Doctor in Christchurch, New Zealand, for alleged criminal abortion, a
large crowd gathered outside the Court, greeting the accused by a
demonstration in his favour on his being discharged by the jury. A
similar verdict in a similar case in Auckland, New Zealand, was greeted
by applause by the spectators in a crowded Court, which brought down the