. Effects of the rays of radium on plants. Plants. EFFECTS OF RADIOACTIVE AIR ON GROWTH "49 emanation, but with the emanation delivered at a greater distance from the seeds than was the case in the preceding experiments, the following experiment was made. May 27, 5 130 P. M. Dry seeds of timothy grass were sown on the surface of the soil. Fig. 30. Experiment 42. Apparatus for growing Plants in an Atmosphere con- taining Radium Emanation. The Air, after passing over the Radium Coating on the inner Surface of the hollow Cylinder (/?), is delivered over the Cultures through a glass Funnel. C
. Effects of the rays of radium on plants. Plants. EFFECTS OF RADIOACTIVE AIR ON GROWTH "49 emanation, but with the emanation delivered at a greater distance from the seeds than was the case in the preceding experiments, the following experiment was made. May 27, 5 130 P. M. Dry seeds of timothy grass were sown on the surface of the soil. Fig. 30. Experiment 42. Apparatus for growing Plants in an Atmosphere con- taining Radium Emanation. The Air, after passing over the Radium Coating on the inner Surface of the hollow Cylinder (/?), is delivered over the Cultures through a glass Funnel. Control Apparatus at the right. Cf. figure Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Gager, C. Stuart (Charles Stuart), 1872-1943. New York
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