Ernst Wilhelm von Brücke (1819-1892) was Freud's boss in the Physiological Laboratory at the University of Vienna from 1886-1892. His name means "bridge" -- an association to which Freud calls attention in discussing the "Three Fates" dream (pb. 237-241). Brücke and two of Freud's colleagues who also worked for him, Ernst Fleischl von Marxow (1846-1891), and Joseph Paneth (1857-1890), are all characters in Freud's "Non Vixit" dream (pb. 456-461).