ainly indicated:

1. Eugenics, to improve the stock.

2. Periodic physical examinations to detect the earliest signs of
disease, and especially infective foci in the head, such as diseased
gums, tooth sockets, tonsils, nasal cavities, etc.

3. The practice of personal hygiene along the lines of ascertained
individual needs.

Cancer, another disease heavily on the increase in all civilized
countries, may be combated by similar measures.

SECTION IX

EUGENICS

"How to Live" deals mainly with personal hygiene, that is, the proper
care of the individual. Hygienic improvement is limited, however, to the
attainment of the best of which an individual is capable. Eugenics deals
with the even more vital subject of improving the inherent type and
capacities of the individuals of the future. It has been but briefly
touched upon in this volume.

Eugenic improvement is attainable through the control of heredity. By
heredity is meant the action of elements which control the development
of the individual, and determine his constitution or makeup. The laws of
Nature governing this action are now known in part, so that advantage
can be taken of them to bring about the hereditary improvement of the
race, generation by generation.

[Sidenote: What Eugenics is Not]

Eugenics is not simply sex hygiene, as many have come to consider it,
owing to the liberal use of the word Eugenics by the sex hygienists.
Sex hygiene is, of course, one of the considerations in eugenic
improvement.

Eugenics is not, furthermore, the science of improving the physical
organism only, as has been erroneously assumed by certain uninformed
publicists, a point of view which has been promoted by cartoonists, who
find it good sport for their pens.

Eugenics does not require the old Spartan practise of infanticide, nor
does Eugenics propose to do violence in any other way to humanitarian or
religious feeling.

Eugenics does not mean, as some have imagined, compulsory or
government-made marriages.

Nor is Eugenics the science of improving the human stock by matings that
are academically ideal, but which lack the element of individual
attraction and instinctive love.

[Sidenote: Discovery of Hereditary Laws]

There was a time when the inherent personality of a man, the color of
his eyes, the capacity of his mind, the quality of his character, seemed
clearly subject to the caprice of forces beyond the reach of mortal
perception. In a