PEOPLE devoid of musical perceptions have some compensations: one of them being that they are not persecuted by tunes which have obtained lodgments in consciousness and cannot for a time be expelled. Most if not all who have ordinarily good ears are liable to be annoyed by these invading melodies-- often those vulgar ones originating in music-halls and everywhere repeated by street-pianos. One remedy for the evil, which is temporarily if not permanently efficient, is that of voluntarily taking up in thought some other melody: the result being that as consciousness will not contain both, the original intruder is for a time extruded. There is some danger, however, that the invited occupant will get possession instead. This, however, by the way.
My reason for referring to this annoyance is that the associated facts throw a side-light on the dispute concerning the Ego. Metaphysical discussions often postulate the innate knowledge of a distinct, coherent, ever-present personality. With some it is an axiom that along with the consciousness of objective existence there is indissolubly joined the consciousness of