Studies in auditory and visual space perception
Arthur Henry Pierce's 1901 experimental psychology monograph on auditory and visual space perception, issued by Longmans, Green in New York and London for laboratory researchers and students of optical illusion and sound localization. Figures are stark black line diagrams: diagonally hatched bars interrupting lettered lines, tilted and parallel strokes, and compass circles marking sound directions, useful as geometric motifs, test patterns, and annotated schematics.
