are domestic and which are wild animals? Describe each and tell
how it is useful to man.

[Illustration: ZEBRA.]

4

THE HOT ZONE

If we take a long trip to the south we find it growing warmer and warmer
until at last we have reached a land where it is warm all the year
through. This is the Torrid Zone.

The plants do not rest nor die in winter there, for there is no cold
weather. These plants keep right on growing through the year. Many of
the trees grow very, very high and have tremendous leaves.

In some cities there are large greenhouses where the Torrid Zone plants
are raised. The temperature must be kept as warm there as in the Torrid
Zone. These are some of the Torrid or Hot Zone plants:

Palm Rubber Giant ferns
Coffee Bamboo Banana

[Illustration: IN THE TORRID ZONE.]

In the forests of the Hot Zone the trees grow very close together. The
sunlight cannot shine through. It is impossible to walk through these
forests without first chopping out a pathway with a hatchet.

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In these forests live many of the fierce animals which you have seen in
cages in the Zoological Gardens or at the circus.

SOME ANIMALS OF THE TORRID ZONE

Monkey Elephant
Camel Snake
Lion Parrot
Tiger Rhinoceros
Leopard Wild Cat

Describe these and tell of what use they are.

[Illustration: A TROPICAL JUNGLE.]

Why are some of the buildings in the Zoological Gardens so warm?

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The Torrid Zone was the first home of the negroes before they were
brought to America. There are many negroes and Indians living in the
Hot Zone now. Many are but half-civilized. Some are savage. As they do
not need large warm homes like ours, some live in small huts made of the
branches of trees, earth and straw. A few of these homes together make a
village. These people get their food by hunting in the forest and
fishing in the rivers and ocean. They also eat the fruits that grow wild
in the forests. There are some cities in the Torrid Zone, but none of
them are very large. These towns have been built mostly by the civilized
white people. The streets are often shaded with beautiful palm trees.
The buildings are generally small, as the people live and work out of
doors as much as possible.

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WHAT THE TEMPERATE AND TORRID ZONES DO FOR EACH OTHER

The people living in the Torrid Zone send to us Temperate Zone people
many useful things that do not grow here. These are some of them