particular property of contractibility.

6. _The mucous membrane tissue_: The mucous membrane forms the covering
of many of the organs, and its chemical and structural composition is
identical in all parts of the body.

It is characterized by a viscid watery secretion from the mucous glands,
which are always found in the mucous membrane.

Its extremely delicate nature renders it subject to all sorts of
irregularities in chemical composition.

This is the cause of numerous diseases, most of which are due either to
overproduction or underproduction of the secretion which regulates
numerous functions of the body.

7. _The tooth and eye tissue_: While very different in external
appearance, functions and physical qualities, the teeth and the eyes
have nevertheless, the most important part of their chemical composition
in common; namely, _the fluoric acid_, which distinguishes them from all
other tissues.

In the process of natural healing the replacing of any element lacking
through destructive causes in either tissue will practically be the
same.

8. _The hair tissue_: Certain chemical component elements are only
found in the tissue which is called the hair, and which receives its
nourishment like all other tissues, through the blood.