“ While engaged in this great work he also projected La France littéraire, which was published at Hamburg in 5 vols., from 1797 to 1806. In 1795 he went to Hamburg to edit the Neue Hamburger Zeitung, founded by Victor Klopstock, brother of the poet, but returned in 1800 to Jena to take active part in the Allgemeine Literaturzeitung. He also obtained in the same year the office of librarian in the university, and in 1802 was made professor of philosophy. ”

“ In 1803 he accepted the chair of geography and statistics at Halle, and in 1808 was made principal librarian. He here projected a Handbuch der deutschen Literatur seit der Mitte des 18. Jahrh. bis auf die neueste Zeit (Leipzig, 1812–1814) and, along with Johann Gottfried Gruber (q.v.) ”