A boy once gave a piece of tobacco to a monkey, which swallowed it not knowing what a bad thing it was.

The monkey soon became sick and died.
~18.~ Many learned doctors have noticed the effects which come from using tobacco, and they all say it does great harm to boys, that it makes them puny and weak, and prevents their growing up into strong and useful men.

If tobacco is not good for boys, do you think it can be good for men?
Certainly you will say, No.
SUMMARY.
1.

Both animals and plants are sometimes diseased.

Flesh obtained from sick or diseased animals is unfit for food.
2.