fluorescent spectrum of what he placed in a small bottle, at E, surrounding the bulb of a surprise and delight in e manner as emphatic as it was un- describes as " a hydrocarbon of the color of the uranium thermometer, or between flat strips of glass. The openings premeditated. salts, obtained from… … the name "thallene," in allusion to Fl£- "• Fig. 5. its brilliant green fluorescence. Observing a striking resem- in place by the rings, (J Or. blance between the thallene in a certain stage of its prepara- Many hundreds of specimen s of uranium salts, in differ tion and commercial anthracene, he…
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