ell as in the
individual should be explained. Boys should see that the conservation of
virility in men is of far more importance than the conservation of our
water-power or our mines,--that we owe a duty not only to ourselves, but
to the nation and to the next generation.

A statement somewhat like the following can then be made: "It is our duty
to pass on to the next generation at least a little more vitality than we
inherited from the past generation. It is, therefore, important that we
understand the main facts of reproduction, so that now we may live right
and make no mistakes which may cause us to reproduce inferior children
when we mature." The speaker may then describe the wonderful and beautiful
process of reproduction in plants, and explain that human reproduction is
a similar process.

Under the subject of the development of virility, much time should be
spent upon a discussion of various ways by which virility can be
developed. The relative values of various kinds of physical exercise,
proper eating, the value of fresh air and of sufficient rest should be
emphasized. It may then be said that in addition to these things an
important source of virility is the absorption of the secretions of
various glands by the blood.

The speaker may make a statement similar to this: "When our bodies were
designed, we were given reproductive organs for two different and distinct
purposes. We have referred to the second and final purpose of
reproduction. You already knew more or less about that. The earlier
function of the reproductive organs is not understood by most boys. It is
this: _the rebuilding of boys into men_. The first purpose and, in some
respects, the most important purpose of the reproductive organs is to
rebuild a boy into a man. It would be absolutely impossible for us to
become men were it not for these organs. I will explain this by three
illustrations."

These three illustrations are generally very effective: an explanation of
the influence of the thyroid gland upon development; a comparison of two
horses, one of which was castrated when a colt; and the effect of
castration upon boys in Oriental countries.

The speaker may then say that the testicles do two things: first,
manufacture the male germ cells, spermatozoa, which are the most highly
potentialized and highly energized portions of matter in all living
nature; and, second, secrete a substance that is absorbed by the blood,
giving tone to the mus