BLUMENFELD, WALTER

BLUMENFELD, WALTER (1882–1967), German psychologist. Born in Neuruppin, Silesia, Blumenfeld became professor at the Technische Hochschule in Dresden. Leaving Germany in 1936, he was appointed professor at the University of San Marcos, Lima, Peru, and director of the Institute of Psychopedagogy. He became known for the "Blumenfeld alleys," an apparatus he invented to measure the perceptual relationship between size and distance.