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Thames Star, Issue 3540, 30 April 1880, Page 2

Accobdikg to a Home paper it has been demonstrated on various occasions that sound-waves "of different quality produce forms of various shapes, but this important fact; is shown in a novel and interesting manner by a new instrument which has been invented called the Phoneidoscope. The Phoneidoscope consists of a cylindrical L shaped brass tube, to the horizontal portion of which is attached an indiarubber tube and a

wooden mouthpice. At the termination m of the vertical part of the instrument is a blackened brass disc, in which is an aperture. If the disc be now covered with a thin coating of soap and water nimilar to the preparation used in blowing soap bubbles, and a voice or instrument be sounded close to the mouthpiece, a curious effect can be perceived in the soap film at the other end of the instrument. The vibration of the molecules of air in the tube is transferred to the film, and bands of rainbow-tinted colour become

apparent, varying in form as the voice or instrument changes, and assuming an endless variety of patterns. Change of pitch produces a noticeable alteration in

the forms, and the same notes on different instruments are marked by variations in the patterns on the soap solution, the colours in which, as the tenuity of .the film increases, become marvellously beautiful.

Poet: "Do you want any of my blank verse?" "No, we don't want any of your ——Terse," said the editor.