THE maintenance of oscillations of a sonometer wire by the passage of an alternating current through it has been studied in detail by Krishnaiyer and others (Phil. Mag., 1922, etc.). If, however, ...

ONE form of an optical sonometer recently made by Messrs. Adam Hilger, Ltd. (of 75A Camden Road, N.W.i), is shown diagrammatically in Fig. 1. The Fig. 1, apparatus is designed to record the pressure ...

IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. A sonometer demonstrates the ...

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