hol a food? Why do you think it is a poison?
Do you think moderate drinking is healthful?

CHAPTER VII. HOW WE DIGEST.--What is digestion? What is the
digestive tube? Name the different digestive organs. How many sets of
teeth has a person in his lifetime? How many teeth in each set? How many
pairs of salivary glands? What do they form? What is the gullet?
Describe the stomach. What is the gastric juice? How long is the
intestinal canal? What fluid is formed in the intestines? Where is the
liver found, and how large is it? What does the liver produce? What is
the gall-bladder, and what is its use? What does the liver do besides
producing bile? What and where is the pancreas? What does the pancreas
do? Where is the spleen? How many important organs of digestion are
there? How many digestive fluids?

CHAPTER VIII. DIGESTION OF A MOUTHFUL OF BREAD.--Name the
different processes of digestion [mastication, action of saliva,
swallowing, action of stomach and gastric juice, action of bile, action
of pancreatic juice, action of intestines and intestinal juice,
absorption, liver digestion]. Describe the digestion of a mouthful of
bread. Where is the food taken after it has been absorbed? What are the
lacteals? What is the thoracic duct?

CHAPTER IX. BAD HABITS IN EATING.--What is indigestion? Mention
some of the causes of indigestion. How does eating too fast cause
indigestion? Eating too much? too frequently? Irregularly? when tired?
How do tea and coffee impair digestion? Why is it harmful to use iced
foods and drinks? Why should we not eat pepper and other hot and
irritating things? How should the teeth be cared for? How does
tobacco-using affect the stomach? What dreadful disease is sometimes
caused by tobacco? How does alcohol affect the gastric juice? the
stomach? the liver?

CHAPTER X. A DROP OF BLOOD.--What does the blood contain? How
many kinds of blood corpuscles are there? What work is done for the body
by each kind of corpuscles?

CHAPTER XI. WHY THE HEART BEATS.--Where is the heart? Why does
the heart beat? How many chambers has the heart? What are the
blood-vessels? How many kinds of blood-vessels are there? Name them.
What is the difference between venous blood and arterial blood? What
change occurs in the blood in the lungs? What is the pulse? How much
work does the heart do every twenty-four hours? What are the lymphatics?
What do they contain, and what is their purpose? What are lymphatic
glands?

CHAP