A cigarette does not contain so much tobacco as a cigar. Hence a
cigarette does not cost much. It can be smoked in a hurry. It does not
make a boy so sick as cigars do. Boys and men use a great many
cigarettes where they would not touch a cigar. This makes the use of
cigarettes the most dangerous form of smoking. Selling cigarettes to
young boys is forbidden by law.

=56. Habit.=--When men have used tobacco for some time, they like it
and feel bad without it. So they get into the habit of using it, and
find it hard to stop. The tobacco seems to help them, but it does not
do so. It cheats men, and they do not know it.

=57. Chewing gum.=--Chewing gum is made from pitch or paraffin, for
these substances will not dissolve in the mouth. The gum is flavored
with sugar and spices. The gum and its flavors are not harmful in
themselves, and yet chewing them is harmful. Chewing makes a great
deal of saliva flow. All this saliva is wasted, and when we eat our
meals we may have too little. Then our food will not digest well, but
we shall have dyspepsia and headaches.

By pulling and handling the gum while chewing it, you may get some
poisonous dirt into your mouth, and make yourself very sick.

Even if your gum should not harm you, there is a good reason for
letting it alone. When you are chewing gum, you look as if you were
chewing tobacco. No one likes to see a boy or girl even appearing to
chew tobacco. If you form a habit of chewing gum you will be more
likely to chew tobacco when you are grown.

WHAT WE HAVE LEARNED

1. Men use tobacco for the sake of its nicotine. Nicotine is a
very strong poison.

2. Tobacco causes a man to waste his saliva.

3. Tobacco makes the mouth dry.

4. Tobacco hinders digestion.

5. Tobacco stains the teeth, and makes the breath smell bad.

6. Tobacco makes a person sick at the stomach.

7. Tobacco weakens the muscles.

8. Tobacco is more harmful to the young than to grown persons.

9. Chewing is the worst form of using tobacco.

10. Smoking cigarettes is the worst form of smoking.

CHAPTER VII

FERMENTATION

=58. Souring of fruit.=--When a little fruit is set away in a warm
place for a day or two it sours or ferments. Anything sweet will do
the same thing. Little bubbles rise up through the juice and a foam
comes on top. Then the juice has a sharp taste or is sour. Canned and
preserved fruit becomes sour