1. 1920-1921 Vergleichende Anatomie des Nervensystems. (German edition of Aliens Kappers, Huber and Crosby, '36.) E. F. Bohn, Haarlem. 2 vols.
2. and 1936 The Comparative Anatomy of the Nervous System of Vertebrates, Including Man. 2 vols., The Macmillan Co., New York.
3. 1901 The Nervous System. 1122 p. D. ppleton and Company, New York.
4. 1899 Die Leitungsbahnen im Gehirn und Rückenmark. Translated into German by R. Weinberg, Leipzig.