Tyndall, John, 1820-1893 · New York : Appleton · leaf 449
r introduction at the proper place. 440 APPENDIX. ler, for the demonstration of the law of reflection of sound. Itconsists of two tubes (a f, b e), with a source of sound at the ende of one of them, and a sensitive flame at the end f of the other.The axes of the tube converge upon the mirror, m,… … INDEX. AOO ACOUSTIC clouds, echoes from,306 — reversibility, 433-441 — transparency, great change of, 302Air, process of the propagation of sound through the, 33 — propagation of sound through airof varying density, 40 — elasticity and density of air, 52 — influence of temperature on the ve-locity…
Sound
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