11 NOVEMBER 1893, Page 16

THE "POLTERGEIST."

LTO THE EDITOR OF THE "SPECTATOR."]

SIR,—In the article on the "Poltergeist," in the Spectator of October 28th, it is said that the noises must cause vibrations in the air. But may the noises not be hallucinatory ? In the legends, it is not every one, always, who hears them. If this is so, I don't know to what kind of conclusion it points ; how- ever, the idea may be worth considering.—I am, Sir, &c., A. L.