CHAPTER XXVII
SOUND
249. The Senses. All the information which we possess of the world
around us comes to us through the use of the senses of sight, hearing,
taste, touch, and smell. Of the five senses, sight and hearing are
generally considered the most valuable. In preceding Chapters we
studied the important facts relative to light and the power of vision;
it remains for us to study Sound as we studied Light, and to learn
what we can of sound and the power to hear.
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