fluorescent spectrum of what he placed in a small bottle, at E, surrounding the bulb of a surprise and delight in # manner as emphatic as it was un- describes as ‘‘a hydrocarbon of the color of the uranium premeditated. thermometer, or between flat strips of glass. The openings salts, obtained from… … thus happens that the presence of impurities in some of the Fig. 4. commercial uranium salts were recognized and identified other things, that the. hydrocarbon described by Becquérel gress, Dr. Morton naturally turned to account the same meth- without so much as opening the bottles which contained…
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