and ventilation, 18 points
Cleanliness, 21 points

A score card movement might be started as a hobby, and in the end lead
public opinion to judicial choice and action. No such movement,
however, is possible without leaders, and leaders of the right type.

The lesson for the community to be drawn from a study of crowd
psychology is that of leadership and loyal cooperation. The common man
is likely to be possessed of one idea at a time. If such an one
becomes a leader, there is danger that equally vital factors will be
overlooked. Safety is found in a combination of leaders to make an
all-round improvement.

Each individual is too busy in his own affairs to look after his own,
much less his neighbor's, health and comfort, hence community life,
with its advantages, brings its own dangers. Children in school in
contact with other children; crowds in trains, in elevators, stores,
in lecture halls, contract habits as well as diseases. The need for
large quantities of supplies at one point brings long-distance
transportation and cold storage difficulties. The man who caters to
public need does not look far ahead to consequences, and if
unrestrained may prove more of a menace than a convenience.

The safe and reasonable way is to delegate to certain persons the
making and enforcement of regulations corresponding to the needs of
the times, and then to obey them, even at some personal inconvenience.

Each community should put into the hands of its health officers the
carrying out of the rules it has agreed to as an _insurance_ against
outbreaks of disease. Does a man let his fire insurance policy lapse
because the year has passed without a fire? Even if the regulation
seems superfluous to the particular individual or family, let it be
remembered that there are inflammable spots in every community.
Eternal vigilance is the price of safety in sanitary as well as in
military affairs. As in the army, the community must delegate scout
duty to certain chosen individuals and rely on their report for
safety.

CHAPTER IV

_Interchangeableness of these two forms of progressive
effort. First one, then the other ahead._

Preventive medicine is the watchword of the hour, and
enlistment in the cause can come only through education....

He who understands the dangers is thrice armed, and is
trained and entitled to enlist in the home guard to protect
the health of his household and neighbors