we expose ourselves to poisonous
vapors?

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_Observation._ A distressing illustration of the absorption of
deleterious substances from the surface of a sore, is seen in the
favorite experiments of that class of "quacks," who style themselves
"cancer doctors." With them, every trifling and temporary enlargement,
or tumor, is a cancer. Their general remedy is arsenic; and happy is
the unfortunate sufferer who escapes destruction in their hands, for
too frequently their speedy cure is death.

413. In case of an accidental wound, it is best immediately to bathe
the part thoroughly in pure water, and to avoid all irritating
applications. In some instances, it would be well to apply _lunar
caustic_ immediately. When handling or shrouding dead bodies, or
removing the skin from animals that have died of disease, it would
be well to lubricate the hands with olive-oil or lard. This affords
protection to the minute portions of the skin, from which the cuticle
may be removed. In all cases where there is an ulcer or sore, the
part should be covered with something impervious to fluids, as
court-plaster, before exposing the system to any animal, vegetable,
or mineral poison.

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413. What direction is given when the cuticle is broken? What
suggestion is given when shrouding dead bodies?

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CHAPTER XXI.

SECRETION.

414. In the human body are found many fluids and solids of dissimilar
appearance and character. These are produced by the action of organs,
some of which are of simple structure, while others are very complicated
in their arrangement. These organs are called _Se-cre'to-ry_.

ANATOMY OF THE SECRETORY ORGANS.

415. The SECRETORY ORGANS are the _Ex-ha'lants_, _Fol'li-cles_, and
the _Glands_.

416. The EXHALANTS were supposed to be terminations of arteries or
capillaries. The external exhalants terminate on the skin and mucous
membranes; the internal in the cellular and medullary tissues.
(Appendix I.)

[Illustration: Fig. 86. A secretory follicle. An artery is seen, which
supplies the material for its secretion. Follicles are also supplied with
veins and organic nerves.]

417. The FOLLICLES are small bags, or sacs, situated in the true skin,
and mucous membrane. The pores seen on the skin are the outlets of
these bodies.

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414. How are the fluids and solids of the body produced? 415-419.
_G