IT is known that salt (NaCl) at a temperature of 200° C. is phosphorescent (vide Phipson on “Phosphorescence,” p. 20); during a course of experiments in June last I found that radium bromide induces ...

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CONTINUING the experiments of one of us on the action of radium bromide on plants, we have experimented on various bacteria. We find that, in the case of Bacillus pyocyaneus, B. typhosus, B.

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