Merchant, F. W. (Francis Walter), 1855-1937, Chant, Clarence Augustus, 1865-1956 · Toronto : Copp Clark · leaf 109
Fig 12-2«.- Ai)paraiiis lurproducing the sound, inLake Geneva. Fig. 1226.—Listeniiijrto the sound fromthe other side ofthe Lake. CHAPTER XVI Pitch, Musical Scales 112. Musical Sounds and Noises. The strokes of a car-penters hammer, the slam of a door, or the rattling of acarriage over a stony road,… … Fig. 123.—Toothedwheels on a rotat-ing machine. Onholding a cardagainst the teetha musical soundis heard. In Fig. 123 are shown four wheels on an axiswhich can be made to rotate by a belt from a largerwheel. First make the axis rotate slowly and holdthe edge of a card against the teeth of a wheel.…
Physics
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