[Illustration: =THE LAND AND WATER HEMISPHERES=]
The Oceans consist of one great fluid mass, and in extent covers three
times the area of the dry land. There is also about three times as much
land to the north of the equator as there is to the south of it. Though
the waters of the ocean surround the land on every side, yet they are
broken up into certain areas by the arrangement of the land portions,
and to these various parts we give particular names.
The Atlantic Ocean, lying between the western shores of Europe and
Africa and the east coast of America.
The Pacific Ocean, lying between the west coast of America and the
east coast of Asia.
The Indian Ocean, lying between the south of Asia and the Antarctic
circle.
The Arctic Ocean, lying within the Arctic circle.
The Antarctic Ocean, lying within the Antarctic circle.