Discoveries and inventions of the nineteenth century (1905)
Routledge, Robert · London : G. Routledge and Sons · leaf 557
ratus at the right-hand end of the coil inFig. 267, the blue and the red radiance change places. Beautiful flashes oflight may also be made to appear in the vessel, having the most marked re-semblance to the streamers of the Aurora Borealis. When, instead of vesselsalmost free from common air, we… … 5o6 ELECTRICITY. Geisslers tubes have already been spoken of in connection with the spec-troscope ; but, independently of that, the various beautiful appearanceswhich such tubes have been made to present, by the introduction of fluores-cent substances and other devices, render the induction coil an…
Inventions
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