He took part in founding the Mathematisch-Physikalisches Seminar, to give students a practical acquaintance with the methods of original research.
Harnack, both as lecturer and writer, was one of the most prolific and most stimulating of modern critical scholars, and trained up in his "Seminar" a whole generation of teachers, who carried his ideas and methods throughout the whole of Germany and even beyond its borders.
In the city are the state library (1842), the state law library (1839), the Illinois historical library (1889), of which the State Historical Society (1903) is a department, and the Illinois Supreme Court library; several educational institutions, including Concordia-Seminar (Evangelical Lutheran), the Ursuline Academy (Roman Catholic), and the Academy of the Sacred Heart (Roman Catholic); the Springfield hospital (1897; Lutheran), and the St John's hospital (1875; under the Sisters of St Francis), two orphanages, two homes for aged women, and a sanatorium; the permanent grounds of the State Fair (157 acres), and a state rifle range and militia camp-ground (160 acres).
Besides continuing his work on the Revolution and on the middle ages, he was occupied with the Historical Seminar which heinstituted; with the Historische Zeitschrift which he founded, the original and model of the numerous technical historical publications which now exist; and as secretary of the new historical commission.
Halevy, Ecole pratique des hautes etudes (1905), pp. 52 4, and the Chinese parallel in the Mittheilungen of the Berlin Seminar for Oriental Languages (1904), vii.