Does an Acoustic Space exist? There are four arguments brought forward in favour of the existence of a special acoustic space. The first concerns the originallocalisation of the two places of the riglit and left ear. It is clear that the tonic impressions without the aid of optic-haptic perceptions are not related to the head, to say nothing of ascertaining the existance of an acoustic space. The second argument is the original localisation in the inside of the skull. If this conception were correct, there could for every field of the senses, the impressions of which are not localised in our optic and haptic space, be ascertained special sense-spaces in analogy with the acoustic space, e.g. a special temperature- and pain-space. The third argument, the localisation of the subjective acoustic im­ pressions in the inside of the skull, is cancelled by the proofs produced against the second argument. The fourth argument, which has most claimed the interest of psy­ chologists, in favour of the existence of an acoustic space, bears upon the supposed original spacious character of the acoustic impressions.