Conductorless X-Ray Bulbs and Tubes

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IN October 1896 (NATURE, vol. liv. p. 594), a description was given by me of an exhausted bulb used in conjunction with a Tesla coil which gave X-rays and its photographic effects. Since these experiments I have found other phenomena, which throw some light on the relative positions of the conductor carrying the oscillations and the greenish fluorescence within the bulb or tube. The relationship is shown in the following diagrams:—

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SMITH, F. Conductorless X-Ray Bulbs and Tubes. Nature 55, 294 (1897) doi:10.1038/055294a0

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