If the cut is very deep, and the blood flows very freely, send for a
doctor. While you wait for him, knot a handkerchief, or suspender, or
towel, in the middle, and twist it very tightly _over the cut artery, above
the wound_. If a vein has been severed, twist the knotted handkerchief
_below the wound_. If the blood continues to flow, tie a bandage both above
and below the hurt part.

* * * * *

QUESTIONS ON THE HEART AND THE CIRCULATION OF THE BLOOD.

Of what shape is your heart?--"My heart is shaped like a cone."

Where is it placed?--"In the chest, pointing toward my left side."

What bone is it near?--"It is near my breastbone."

Of what use is the heart?--"It contains the blood and sends it to the
different parts of the body."

How much blood is sent from the heart at each beat?--"About two ounces."

What is the blood?--"A liquid made from food and drink."

Of what color is the blood?--"Bright red, when pure; dark red, when
impure."

How does the heart send the blood through the body?--"Through pipes called
arteries."