THE BLOOD ("The life ... is in the blood")

Consists of
A colorless liquid (plasma), and
Little, red, circle-shaped bodies (corpuscles).

ALCOHOL (a blood-poison)

Mixes with the colorless liquid, and takes away some of its goodness.

Makes some of the corpuscles
Smaller.
Change shape.
Lose color.
Lose oxygen.
Die, and change into useless fat

TO THE BRAIN AND NERVES.

Where is your brain?—"In my skull." What color is it?—"Gray and white." What does it resemble?—"Marrow." What work is done in the brain?—"The work of thinking." You may repeat what you have learned about the membranes of the brain. (See Formula for the Lesson on the Nervous System.)