 D. and his rabbinical diploma, and accepted a call to Mecklenburg-Strelitz as teacher and preacher, in the same year (1844).Two years later he was called to Prague as preacher of the Temple Congregation, succeeding Michael Sachs; he remained there until his retirement in 1890.In 1850 Kaempf became "privat-docent" in Semitic languages at the University of Prague, his dissertation being "Ueber die Bedeutung des Studiums der Semitischen Sprachen" (Prague, 1850); eight years later he was appointed assistant professor of Oriental languages at the same university.