Excerpt from A Text-Book in Physics for Secondary Schools
The treatment of Heat is unusually full of principles and their applications. The relative importance of this subject, in its rela tions both to the life of the pupil and to his work in other sciences, justifies this plan. The discussion of Sound, the least important of all the subdivisions, is much shorter than that usually given, yet it offers all that is of any considerable value to people gener ally.
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