Jahresbericht über die Berliner Fortbildungsschule, 1890-1891.
Kunstgewerbe als Beruf, 1901.
Note on the Earlier History of the Technical High Schools in Germany.—A. E. Twentyman.
Special Reports on Educational Subjects, London, 1902, Vol. 9, page 465.
Paches’ Handbook, 1899.
Problems in Prussian Secondary Education for Boys.—Michael E. Sadler.
Special Reports on Educational Subjects, London, 1898, Vol. 3.
Programm der Königlichen Fachschule zu Iserlohn Metal Industrie.
Report of the United States Commissioner of Education, 1889-1890, page 1209-1212.
Same, 1894-1895, Vol. 1, page 345-380.