ls whose organs are not
diseased, and the functions of which are properly performed.

674. _More clothing is required in the evening, than during the day._
In the evening we have less vital energy, and therefore less heat is
generated in the system, than in the early part of the day; beside,
the atmosphere is damp, the skin has become moist from free
perspiration, and heat, in consequence, is rapidly removed from the
system. For this reason, when returning from crowded assemblies, we
should be provided with an extra garment.

_Observations._ 1st. If there is a chill upon the system after having
arrived home, warmth should be restored as speedily as possible. This
can be done by friction with warm flannels, and by using the warm or
vapor bath. By this procedure, the pernicious effects of the chill
will be prevented before any disease is fixed upon the system. Is it
not the duty of the parent and the guardian to learn these facts, and
to see that they are not only learned, but reduced to practice?

2d. The farmer and industrious mechanic would be freed from many a
rheumatic pain, if, while resting from their labors at evening, or
taking the ordinary meal after hard toil, they would put on an extra
garment. The coat might not feel so agreeable for the first few
minutes, but it would ultimately conduce to health and longevity.

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673. Why do dyspeptic and consumptive persons require more clothing
than those who have healthy vital organs? 674. Why do we need more
clothing in the evening than during the day? How can the pernicious
effects of a chill be prevented? Give the 2d observation.

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675. _The person of active habits requires less clothing than one of
sedentary employments._ Exercise increases the circulation of the
blood, which is always attended by the disengagement of a greater
quantity of heat; consequently, an increase of warmth is felt
throughout the system. We likewise need more clothing while riding,
than when we are walking; because the exercise of the former is less
than that of the latter. The same is true when resting in the field or
shop, after laborious exercise.

_Observation._ We need a greater amount of clothing while asleep, than
during the day; as not only the action of the body, but that of the
brain, during sleep, is suspended.

676. _Less clothing is required when the cutaneous surface is clean._
A film of impurities obstructs the pers