In what other way do alcoholic liquors hurt the heart?--"They produce
disease in it."

Tell one way by which the heart becomes diseased through alcoholic
liquors?--"Alcohol softens the fibres of the muscles of the heart, and
fills them with fat."

What harm does this do to the heart?--"It makes it too weak to do its work,
which is to pump the blood through the body."

What sometimes happens when the heart is thus weakened?--"It stops beating,
which causes sudden death."

What harm does alcohol do to the blood?--"It uses up the water of the
blood; it destroys the goodness of the red part; it makes the blood thin,
impure, and unfit to do its work." See Appendices on Alcohol and Tobacco.

* * * * *

[Illustration: THE LUNGS.]

1, 2, the larynx, the upper part of the windpipe.
3, the windpipe, or trachea.
4, where the windpipe divides to right and left lungs.
5, the right bronchial tube.
6, the left bronchial tube.
7, outline of the right lung.
8, outline of the left lung.
9, the left lung.