knowledge of danger is the surest means of guarding
against it," but this knowledge must be translated into belief and the
danger be brought home to the individual as a member of the community.

Exhibits may often suggest for existing evils simple remedies never
thought of before. They should never suggest the one idea without the
other. Even though the remedy is not worked out, it should be called
for. America's inventive power may well be turned on its own social
affairs as well as on adaptation of European machinery.

The man considered in these pages is the man in community environment,
and the discussion is as to what controls this community life. It will
be acknowledged by all thoughtful persons that the prime control lies
in the purpose for which the community exists. If for selfish gain,
then all is sacrificed to that end. Men and women become mere machines
and children are only in the way until they, too, may be put into the
service.

If it exists for mutual help and general advance in civilization, then
the leaders in the community take into account the elements that
contribute to the future as well as those for the immediate present.

In the confusion of ideas resulting from the rapid, almost cancerous
growth of the modern community, made possible by mechanical invention,
the people have lost the power of visualizing their conception of
right and wrong, a power which made the Puritan such a force in early
colonial times. Heaven and hell were very real to him and were
powerful factors in influencing his daily life. The average man today
has no such spur to good behavior. Perhaps the sword of Damocles must
be visualized by such exhibits as the going out of an electric light
every time a man dies, by the ghastly microbe in the moving picture,
by the highly colored print or by a vivid reproduction of crowded
quarters. The social worker has been doubtful of the real value of
such exhibits, but such reminders have their place in a community
accustomed to the advertising of less worthy subjects.

A decided recognition of the value of exhibits is found in the
advertisement of a company: "We design and equip Exhibits on
Tuberculosis, Milk, Civic Betterment, Dental Hygiene, Saner Fourth of
July. Have you our catalogue?" Much of our educational work for the
dissemination of useful knowledge would gain in power and directness
from an adaptation of the methods of the man skilled in promoting
commercial interests. He