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Continuation of Experiments on the Determination of the Rate of Excretion of Radium Solution Injected Intravenoualy into Guines Pigs. page 4. Experiment 8. 38 agys after the injection one pig was killed and incinerated, weight of ash---15.5 grams. Radium found .70 and -75, average-=-0.725 miorograns. Experiment 9. On March 4th one pig was killed and incinerated, weight of ash 19.4 grans. Radium found -57 nnd -58, average 0.575 micrograms. H. H. Baker. Physical Laboratory, March 12, 1926.