 Sounds…have no intrinsic spatial characteristics: such expressions as “to the left of”, “spatially above”, “nearer”, “farther” have no intrinsically auditory significance (…). A purely auditory concept of space…is an impossibility. The fact that, with the variegated types of sense-experience which we in fact have, we can, as we say, “on the strength of hearing alone” assign directions and distances to sounds, and things that emit or cause them, counts against this not at all. For this fact is sufficiently explained by the existence of correlations between the variations of which sound is intrinsically capable and other non-auditory features of sense-experience.