. Effects of the rays of radium on plants . 1 2 3 4 5 6 7 .& Hours Fig. 50. Acceleration of Respiration of germinating Wheat by Radium Rays. of 10,000 activity, and units in the control. During the last 15 hours of the experiment, units were recorded following ex- posure to the radium of stronger activity; units following ex- posure to the radium of weaker activity, and units in the control. The total amounts evolved during 23 hours were recorded respect- ively as follows : units; units; units.

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Keywords: ., bookcentury1900, bookdecade1900, bookpublisher, booksubjectplants