AbstractThe writer is convinced of the reality of sound which is produced, under favorable conditions, by the natural transformation of ether waves into ordinary sound, somewhat as in the radio, and proposes that the adjectiveethaërialbe used to designate such sound. If such sound exist, then the noises which are frequently heard at the same time as a meteor is seen and which have been reported by many observers, may be explained as ethaërial—in contradistinction to true aërial—