WONDERS OF EARTH, SEA, AND SKY




WHAT THE EARTH'S CRUST IS MADE OF

(FROM THE WORLD'S FOUNDATIONS.)

BY AGNES GIBERNE.


"Stand still and consider the wondrous works of God."

[Illustration]

What is the earth made of--this round earth upon which we human beings
live and move?

A question more easily asked than answered, as regards a very large
portion of it. For the earth is a huge ball nearly eight thousand
miles in diameter, and we who dwell on the outside have no means of
getting down more than a very little way below the surface. So it is
quite impossible for us to speak positively as to the inside of the
earth, and what it is made of. Some people believe the earth's inside
to be hard and solid, while others believe it to be one enormous lake