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Various musical chords written on a staff.

Musical Chords

Various musical chords written on a staff.

Enlarged portions of a half tone print, showing light, medium, and dark tints.

Half Tone Print (Enlarged)

Enlarged portions of a half tone print, showing light, medium, and dark tints.

"Hemholtz constructed a series of resonators, each one of which responds powerfully to a single tone of certain pitch or wavelength. they are metallic vessels, nearly spherical, having an opening, as at A, for the admission of the sound waves." -Avery 1895

Hemholtz Resonator

"Hemholtz constructed a series of resonators, each one of which responds powerfully to a single tone…

"Procure an open organ-pipe, at least one side of which is made of glass. While the pipe is emitting its fundamental tone, lower a small ring with a paper bottom, on which a little fine sand has been strewn, as shown. Just inside the upper part of the pipel, the sand dances...its motion becoming less energetic as the ring approaches the middle of the pipe." -Avery 1895

Organ Pipe

"Procure an open organ-pipe, at least one side of which is made of glass. While the pipe is emitting…

An example of how to produce a tone. This illustration shows one end of a string fixed to a hook and suspending a weight from the other end. When you pluck the string it causes it to make a musical note, also known as a tone.

Tone

An example of how to produce a tone. This illustration shows one end of a string fixed to a hook and…

"A glass bell is fixed to stand, and beside it is a stand carrying a small ivory ball. This is so arranged that the ball shall just rest against the rim of the glass, Now let the violin bow be rubbed with a lump of rosin, and then drawn steadily over the edge of the glass. A clear musical note will be produced, but the vibrations of the glass will scarcely be perceptible to the eye." -New, 1891

Tone

"A glass bell is fixed to stand, and beside it is a stand carrying a small ivory ball. This is so arranged…

"If a light strip of steel is firmly gripped at one end in a vice and the other end plucked aside, it will, when let go, vibrate backwards and forwards as shown; and if the vibrations are sufficiently rapid, a musical note will be produced." -New, 1891

Tone

"If a light strip of steel is firmly gripped at one end in a vice and the other end plucked aside, it…