Thomas Joseph Heinrich Schellen
1818–84
German teacher and school director. Began teaching in Cologne, 1841; senior teacher, Dusseldorf, 1842–51. Director of the technical college and Realschule, Münster, 1851–8; director and teacher, higher Bürgerschule (city school), Cologne, 1858–81. Wrote several guides to teaching mathematical and scientific subjects, as well as books for non-specialists on scientific and technical advances.
Source
ADB
Bibliography
ADB: Allgemeine deutsche Biographie. Under the auspices of the Historical Commission of the Royal Academy of Sciences. 56 vols. Leipzig: Duncker & Humblot. 1875–1912.
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