ode fix them. For this purpose a rotating copper cylinder, ¢ is Sy | covered with lampblacked paper and the style is brought in of graphically showing the nature of sounds. The appa-' od N tf | ratus used consists of a metallic capsule divided into two! contact with the latter, sothat, when the… … is that dueto the difference arising from the quantity of air one side of the capsule connects with a mouthpiece; the forced into the trumpet and that which can escape through space on the other side is connected with a gas burner, the supply pipe of which also enters said space, so that on one the…
Internet Archive · Public domain (published before 1931). Free to use for anything.
