J. J. KORANDA lday Table 1. Tritiumcontent of samples collected on Runit Island at Cactus Crater (in T.U.) Sample Loose Wood Bound water water Leaves Loose Bound Loose Litter Bound Loose water water water water water Soil Bound water Messeryhmidia ergentea, inner wood tium 3 One 2970 + 50 4600 + 140 442 4.27 10704 45 152 + 17 1800 + 80 509 + 30 3.54 + 0.10 x 10° ouler wood 3230 + 60 2740 + 100 Messere and, schmidia vity, argentea, * ‘das agentea, rom S. end 1 be - or . the Messershmidia <70 fotescens soil repens Triumfetta lese ries ied. gle les. ind ad. 620 + 40 220 + 26 of Runit) Scaevola MC tol] 410 + 40 540 4+ 32 1360440 Lepturus procumbens 119420 750450 265 +28 2840 + 90 1504+ 28 600 + 40 59419 7100 + 250f * (second sample one monthlater). t Second analysis—10,000 + 300 T.U. da id, che se ed Table 2. Tritium content of samples collected on Engebi and Sanildefonso Islands (in T.U.) les cal Wood Samples Messerschmidia argentea, er . ‘Sy EngebiIs. Scaevola frutescens, EngebiIs. Messerschmidia argentea, Sanildefonso Is. na Lepturus repens, i1) n Triumfetta procumbens, Sanildefonso Is. re Sanildefonso Is, Loose water 65 Bound water Leaves Loose water Bound water Loose water Litter Bound water 170 +20 60 530460 60 160 + 30 120 +15 1704320 60 560340 60 1960 + 60 80 +30 200440 60 180 + 60 . 60 70 Loose water 60 Soil Bound water 3.68 + .10x105 60 7.50 + .05 x 104 =—«:180 + 30