Tyndall, John, 1820-1893 · London : Longmans, Green · leaf 473
ed by my assistant and constructed by Tisley and Spiller,for t]ie demonstration of the law of reflection of sound. Itconsists of two tubes (af, br), with a source of sound at the endR of one of them, and a sensitive flame at the end f of the other.The axes of the tubes converge upon a mirror m, and… … Bemarhahle Instances of Acoustic Opacity.For the following account of the battle of Gains Farm, Iam indebted to the Rector of the University of Yirginia :— Lynchl)\irgh, Virginia : March 19, 1874. Sir,—I have just read with gi*eat intere.st your lecture ofJanuary 16, on the acoustic transparency…
Sound
Internet Archive · Boston Library Consortium · Public Domain Mark 1.0. Free to use for anything.
