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Scheibler, Johann Heinrich

Scheibler, Johann Heinrich (b Montjoie, nr. Aix-la-Chapelle, 1777; d Crefeld, 1837). Ger. silk manufacturer with interest in acoustics. Experimented in measurement of pitch and in 1834 at Stuttgart proposed 440 vibrations for A at 69° F, adopted as ‘Stuttgart pitch’. Invented ‘Aura’, first mouth harmonica, 1816. Writings on subject pubd. 1838.

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"Scheibler, Johann Heinrich." The Concise Oxford Dictionary of Music. . Encyclopedia.com. 25 May. 2017 <http://www.encyclopedia.com>.

"Scheibler, Johann Heinrich." The Concise Oxford Dictionary of Music. . Encyclopedia.com. (May 25, 2017). http://www.encyclopedia.com/arts/dictionaries-thesauruses-pictures-and-press-releases/scheibler-johann-heinrich

"Scheibler, Johann Heinrich." The Concise Oxford Dictionary of Music. . Retrieved May 25, 2017 from Encyclopedia.com: http://www.encyclopedia.com/arts/dictionaries-thesauruses-pictures-and-press-releases/scheibler-johann-heinrich

Roos, Johann Heinrich

Johann Heinrich Roos (yō´hän hīn´rĬkh rōs), 1631–85, German painter and etcher. He specialized in depicting animals and landscapes and was court painter to Elector Palatine Charles Louis. He is represented in German galleries, and the New-York Historical Society has two of his paintings.

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"Roos, Johann Heinrich." The Columbia Encyclopedia, 6th ed.. . Encyclopedia.com. 25 May. 2017 <http://www.encyclopedia.com>.

"Roos, Johann Heinrich." The Columbia Encyclopedia, 6th ed.. . Encyclopedia.com. (May 25, 2017). http://www.encyclopedia.com/reference/encyclopedias-almanacs-transcripts-and-maps/roos-johann-heinrich

"Roos, Johann Heinrich." The Columbia Encyclopedia, 6th ed.. . Retrieved May 25, 2017 from Encyclopedia.com: http://www.encyclopedia.com/reference/encyclopedias-almanacs-transcripts-and-maps/roos-johann-heinrich