SHAPE ADVISABLE.--As for the form and
shape, as Dr. Taylor says, "anything that will transmit ideas by
sketch or wording will serve as an instruction card." He advises,
however, taking advantage of the saving in time to be gained by
having the instruction cards as nearly alike as possible. They may,
for convenience' sake, vary as to length, but in width, ruling,
spacing and wording they should be as nearly alike as possible.

STANDARD SURROUNDINGS VALUABLE.--Standard environment, or
surroundings, of the worker are valuable for two reasons:

1. Because they directly increase output by eliminating
everything which might distract attention or cause needless fatigue,
and by assisting in the attainment of more output by having the best
possible surroundings for greater output.

2. Because all surroundings suggest an easy achievement. Knowing
that everything has been done to make his work possible and easy,
the worker feels this atmosphere of possibility and ease around him,
and the suggestive power of this is strong.

UNNECESSARY FATIGUE SHOULD BE ELIMINATED.--The walls, appliances
and furniture, and the clothing of the worker should be of that
color which will rest his eyes from the fatigue of the work. All
unnecessary noise should be eliminated, and provision should be
made, where possible, that the workers may enjoy their sleep or
their rest hours in perfect quiet.

Records show the value of having quiet reign in and near the
camp, that the workers may not be disturbed. Even though they are
not disturbed enough to be waked up, every noise that is registered
in the brain affects the body, for it is now conceded that the body
reflects every phase of mental activity.

ALL MENTAL STATES AFFECT BODILY STATES--Dr. Stratton says: "It
is now generally accepted that the body reflects every shade of
psychic operations; that in all manner of mental action there is
some physical expression."[7] All consciousness is motor "is the
brief expression of this important truth; every mental state somehow
runs over into a corresponding bodily state."

ELIMINATION OF WORRY ASSISTS IN CONCENTRATING ATTENTION.--The
more fireproof the building, and the more stable the other
conditions, the greater the efficiency of the inmate. Burglar-proof
buildings not only actually induce better sleep, in that possible
intrusions are eliminated, but give a state of mental peace by the
removal of apprehension. So also, a "ge