1. , This paper is an abstract of the author's “Doktordisputats”, published in Danish: “Studier over vestibulaer Nystagmus”, Copenhagen, V. Thaning & Appel 1920
2. Ewald. Physiologische Untersuchungen über das Endorgan des Nervus octavus. Wiesbaden 1892; 134
3. , Here and in the following chapters, my above-mentioned technique is used