Tyndall, John, 1820-1893 · New York : Appleton · leaf 269
pipes, tuning-forks, bells, and trumpets, with a like ab-sence of all effect. A barely perceptible motion of theinterior of the flame may be noticed when a shrill whistleis blown close to it. But by turning the cock more fullyon, the flame is brought to the verge of flaring. And now,when the…
Sound
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