Table 19a—sr™ IN RIVER WATER SAMPLES COLLECTED BY THE UNIVERSITY OF CHICAGO Sample No. Collection date, 1953 Source Sr” /iter, uc 2/4 Mississippi River, 0.134 + 0.019 CL-54 Memphis, Tenn. CL-57 4/17 CL-112 9/7 Mississippi River, St. Louis, Mo. Mosel River, 0,092 + 0.021 =0.006 Metz, France CL-113 9/8 CL-114 9/12 Seine River, Nogent, France Donau River, Ulm, Germany <0.011 <=0.008 Table 19b-—Sr™ IN RESERVOIR AND PRECIPITATION WATER SAMPLES COLLECTED BY THE LAMONT GEOLOGICAL SURVEY OBSERVATORY Sample No, W-1 W-2 W-5 Collection date, 1954 2/6 2/6 2/6 Source Reservoir, Ashoken, N. Y. Reservoir Schoharie, Allaben, N. Y. Reservoir Sr™ /Aliter, puc —0.608 0.114 + 0,023 —0,025 Rondant, N. Y. W-6 W-52 2/6 Reservoir 0.062 + 0.035 8/11 Monroe, N. Y. Rain, 0.607 + 0.039 Flensburg, Germany Rain and Snow W-59 W-13 W-12 W-11 W-10 W-3 W-8 Ww-4 1277" 1/11 2/3 2/5 2/17 2/22 2/25 3/3 (2:30 pm) Lamont Lamont Lamont Lamont Lamont Lamont Lamont Lamont Observatory Observatory Observatory Observatory Observatory Observatory Observatory Observatory 0.343 0.445 0.621 0.334 0.382 0.585 0.274 0.114 W-7 W-17 W-18 W-19 W-20 W-21 W-22 W-48 3/3 (7:30 pm) 3/15 3/19 3/20 3/25 3/27 4/1 4/23 Lamont Lamont Lamont Lamont Lamont Lamont Lamont Lamont Observatory Observatory Observatory Observatory Observatory Observatory Observatory Observatory 0.331 2.17 2.20 1.77 8.32 5.73 12.38 0.349 + 0.042 +0.113 +x 0.071 +0.019 + 0.257 + 0.148 + 0.36 4 0.032 W-24 W-25 W-54 Ww-49 W-45 W-55 W-56 W-58 4/24 4/27 6/23 6/25 8/1 9/8 9/9 9/16 (12:00 Noon) Lamont Lamont Lamont Lamont Lamont Lamont Lamont Lamont Observatory Observatory Observatory Observatory Observatory Observatory Observatory Observatory 0.585 0.558 0.494 1.10 1.75 0.200 0.243 1.48 + 0.044 + 0.017 + 0.024 +0.095 +0.073 + 0.023 + 0.015 + 0.018 D2 + + + + + + + + 0.012 0.051 0.056 0.040 0.029 0.051 0.012 0.023