One of hundreds of German scholars displaced by the Nazis after 1933, Rudolf Höber was an early proponent of applying physicochemical methods to the analysis of the physiology of cell membranes, particularly their role in the regulation of transport, permeability, and electrical properties. For many years his Physikalische Chemie der Zelle und Gewebe (1902) and Lehrbuch der Physiologie des Menschen (1919) were the standard works in their field. The Höber Papers consist of five linear feet of family correspondence, with a small number of professional letters scattered throughout. Although Höber's physiological research, per se, is seldom discussed, the letters provide insight into the family life and privileged social milieu of a member of the German intellectual elite in the years prior to and immediately after the First World War, his loss of position after the rise to power of the Nazis, and the conditions of his emigration to the United States, his adjustment to American life, and his attempts to bring the remainder of his family to safety during the late 1930s. The collection is arranged in two series, Correspondence (Series I, 5.5 lin. feet), which is arranged chronologically, and Publications and miscellaneous (Series II, 0.5 lin. feet), which is arranged alphabetically.