8 4d fn s. i. a4 tp Trrryy 100 %® S Doenierad % x ~ pl os awl. 717-§7 hh 5r eh 0-22-55 ph F26-54 ° 0.24 12-18-54 | ‘fr 73 = An 4S -o — or as tS ¥ 4. ¥ A. v pe/kg ash ~ 9° 0 pl “Tv ne =—~——Hard tack t 8 9S awe i) Days (and dates) after March |, 1754 Figure 2. Trends in beta radioactivity of plankton in the eastern part of Rongelap Lagoon from 1954 to 1958. 106.