25 FOREIGN SOIL SAMPLES 1956 8.05 MT TOTAL EXPECTED THEORETICALLY: JAN. 1, 1957 8.14 7= 10 12.44 7: 5 JAN, 3, 1956 5.35 7°= 10 8.08 7- 5 4 $179 millicuries/square mile 20 }— TOTAL OBSERVED: e 1¢ e ee e Qn e e 2 e NARROW BAND THEORY AVE. OF ° JAN. 1, 1956 AND JAN, I, 1957 (T= 10 YEARS) —_2 flees: ° 5 ° Pe ° ; + ‘ ——"e s ° e e e e ovo occ ee 6 s ° e”nt ° @ e @ e ° ®., e e ® a : e ——— e e e e 0 | 90° oes. KT tHeory 60° 133 97 e e—— SOUTH 620 536 ava 315 e | | | 30° 0? 30° 407 270 745 585 452 |490 350 +360 670 1720 675 370 eas 324 L NORTH 790 685 @53 965 69° 693 189 90° 395 104 131 98 t FIGURE 15 nog ARCHIVES

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