-~30— 3 \. 10 \ ms \ \ \, »— — —e Leaves 50 Theoretical —-—-— decay of 7 “gd fission products \. ‘\ Soil +104 \, 2 10° +103 po/kg of uc/kg \ wet tissu4d of eNO dry soil \ \ \ 10 L \\ \\ o. | _ Pre-Nectar leaves . A Pre- Nectar Soil ’ Lt 4 10 ! 10 1 Days after May 14, Figure 9. _|10? | 100 1000 1954 Decline of radioactivity of the terminal leaves of Scaevola sp. and of the soil at Belle Island, 1954-1955, compared with the theoretical decay of mixed fission products (15 .

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