_ Histon. products, “Forfiltered well:water the decay. vatefor “ ghe game period was similar, te & 1.39, Another observation a8 that the Padtoactivity of the treshewater samplos increased ‘pron south to north with the activity of the Rongelap Island : ‘sample being 1/4, 1/6, and 1/10 of the activity of ‘the freshwater samples from Rnleetok, LabaredJ, and Kabelle ‘Islands, respectively, . $ “4, ” a we x, vf bh % ‘ € ‘ Kou «= ie 4. 4 nore LF Miya ~ t, é a te oh ~ f wa a 5 f oa FETE ae ty “Zim