. Effects of the rays of radium on plants . Fig. 15. Experiment 26. Retardation of Growth of Zea Mays by Exposing Grains, before Planting, to a Sealed Glass Tube of Radio-Tellurium. Duration of Exposure, 24 Hours. ^a_3 J II, 10 A B D E 1,800,000 X 1,500,000 X Ra. Tel. Control I mm. mm mm. mm 2 3 4 mm. mm. mm. mm mm. mm. 19,83 mm. mm

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Keywords: ., bookcentury1900, bookdecade1900, bookpublisher, booksubjectplants