Sends his book [Naturwissenschaftliche Thatsachen und Probleme. Populäre Vorträge (1880)].

Anxious to receive Movement in plants because CD’s methods may be applicable to his experiments on the earliest movements of animal embryos.

CD’s comment that certain instincts originate as variations of the brain, rather than as habits, is supported by Brown-Séquard’s and C. F. O. Westphal’s work on epileptiform movements.