. Effects of the rays of radium on plants . mm. mm. C 10,000 X mm. mm, mm, D Ra. Tel. mm. mm. mm. E Control mm. mm. mm. None of these plants exposed to the radium of 1,800,000 activity are erect, but grow parallel with and close to the surface of the soil.

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Keywords: ., bookcentury1900, bookdecade1900, bookpublisher, booksubjectplants