Because there is then nothing but the walls to obstruct the waves of sound; but when the dwelling is furnished, each article of furniture helps to obstruct the sound and to make it less distinct.

What may be said of the harmony of sounds?

The babbling of the brook, the roaring of the cataract, the wailing of the wind, and the singing of the birds, everywhere show the Divine love of harmony; for where there is no human ear to listen, they still sing their heavenly anthems of praise to His ear alone.

CHAPTER VII.
Matter.

In what form is all matter found?

In the form of a solid, a liquid, or a gas.

What is true of all solids?