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Graevius, Johann Georg

(Encyclopedia)Graevius, Johann Georg yōˈhän gāˈôrk grāˈvēo͝os [key], 1632–1703, German antiquary. His German name was Gräve or Greffe. He was historiographer to William III of England and is remembered...

Roos, Johann Heinrich

(Encyclopedia)Roos, Johann Heinrich yōˈhän hīnˈrĭkh rōs [key], 1631–85, German painter and etcher. He specialized in depicting animals and landscapes and was court painter to Elector Palatine Charles Louis...

Dillenius, Johann Jakob

(Encyclopedia)Dillenius, Johann Jakob dĭlāˈnēəs [key], 1687–1747, English botanist, of German birth. He published catalogs of the plants of Eltham, Kent, and of Geissen, Germany, and a work on mosses that pl...

Hummel, Johann Nepomuk

(Encyclopedia)Hummel, Johann Nepomuk yōˈhän nāˈpōmo͝ok ho͝omˈəl [key], 1778–1837, Hungarian-born pianist and composer. In piano technique and improvisatory ability Hummel was thought to rival Beethoven....

Zeuss, Johann Caspar

(Encyclopedia)Zeuss, Johann Caspar yōˈhän käsˈpär tsois [key], 1806–56, German philologist. Zeuss's principal scholarly achievement was his establishment of the basis for the study of Celtic in his Grammati...

Froberger, Johann Jakob

(Encyclopedia)Froberger, Johann Jakob yōˈhān yāˈkôp frōˈbĕrgər [key], 1616–67, German organist and composer; pupil of Frescobaldi. His style influenced German keyboard music during the baroque era. He i...

Eckermann, Johann Peter

(Encyclopedia)Eckermann, Johann Peter yōhänˈ pāˈtər ĕkˈərmän [key], 1792–1854, German scholar and author. He assisted Goethe in various literary labors, was professor of English and German at the Univ. ...

Poggendorff, Johann Christian

(Encyclopedia)Poggendorff, Johann Christian yōˈhän krĭsˈtyän pôgˈəndôrfˌ [key], 1796–1877, German physicist and chemist. He founded (1824) and edited the important Annalen der Physik und Chemie and edi...

Albrechtsberger, Johann Georg

(Encyclopedia)Albrechtsberger, Johann Georg yōˈhän gāˈôrk älˈbrĕkhtsbĕrˌgər [key], 1736–1809, Austrian musical theorist, teacher, and composer. He became (1772) court organist in Vienna and later was ...

Glauber, Johann Rudolf

(Encyclopedia)Glauber, Johann Rudolf yōˈhän ro͞oˈdôlf glouˈbər [key], 1604–70, German alchemist. A forerunner of scientific chemists, Glauber made many practical advances in analytical chemistry; he devis...