A natural philosophy : embracing the most recent discoveries in the various branches of physics, and exhibiting the application of scientific principles in everyday life .. (1899)
Quackenbos, G. P. (George Payn), 1826-1881 · New York, Cincinnati [etc.], American book company · leaf 293
The Human Ear.—The human ear consists ofthree distinct parts; the outer ear, the drum, and • the in-voice ? What instance of its remarkable flexibility is given ? 753. What is Ventril-oquism ? Describe some of the feats of ventriloquists. What use is supposed tohave been made of ventriloquism in… … 288 ACOUSTICS. ner ear. These parts and their connections are representedin Fig. 265. p. 2g5 A A is the outer ear, which acts on the principle of the ear-trumpet, collect-ing the sound-waves and reflecting themalong the pipe B to the membrane C,called the membrane of the tympanum.E is the tympanum…
Physics
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