ih hy Sample be .CL 1040-P: Sunshine Units Beltsville #551186B, 18.22 g oxalate, 17,8 + 1,0 6.8 g oxide, 4.89 g Ca. Interlaboratory check sample, Tifton, Georgia, November 2, 1955, electrodialysis extraction of lh lbs. soil, Ol" depth. a, CL 101-P: Beltsville #551523A, 0,698 g oxalate, 0226 ¢ oxida, 0.186 g Ca. be CL 102: Beltsville #551523B, 0.59 g oxalate, 0.22 g oxide, 0.16 g Ca. 3e 16h * 12 178.2 * 7.1 CL 1127: Brawley, California, Beltsville #56316, collected January 5, 1956, electrodialysis extrac- tion of | lbs. soil, 0~6" depth, 16,56 g oxalate, 6.35 g oxide, 4.54 g Cas C. Foreign, Northern Hemisphere - le CL 1065: Englend, Beltsville #56758, obtained by Dr, L. Alexander in July 195h, extracted by fusion of a 100 gram subsample of a l) lb. electro- dialyzed soil sample, 0-3" depth, 4.15 g oxalate. 1059 g oxide, 00136 g.ca. (1.2 * 0,3 dpm Sr total sample activity.) 2e CL 1095-P: Calcareovs, Paris, France, Beltsville #55614, obtained by Dr. Le Alexander, February 16, 1955, electrodialysis extraction of h lbs. 0.69 * 0.05 soil, 0-4" depth, 29.30 g oxalate, 11.06 g oxide, 7290 g Cas 3e CL 881: Italy, Beltsville $55772, obtained by Dr. Le Alexander, February 5, 1955, NH) AC extraction of lbs, soil, O~l" depth, 43.1 ¢ oxalate, 16.5h 1-6 = 0.05 g oxide, 11.5 g Ca, he CL 882: Turkey, Beltsville #55877, obtained by Dr. L. Alexender, February 7, 1955, NHjAC extrac~ 1.28 * 0.07 tion of 4 lbs. soil, 0-4" depth, ihe6 ZB oxalate, 16.96.g oxide, 12.0 g Ca, 5e CL 883: Turkey, Beltsville #55128), obtained by Dr. Le Alexander, February 28, 195), NH) AC extrace tion of , lbs. soil, 0-2" depth, 2.8 g oxalate, Ze ~ 0613 16.31 £ oxide, 11.5 Z Cae CL 88h: Turkey, Beltsville #551285, obtained by Dr. Le Alexander, February 28, 1954, NHAC extrac- tion of 1.52 © 0,05 lbs, soil, 0-2" depth, 47.5 g oxalate, 18.28 g oxide, 12.8 g Ca, *% New result obtained following strontium separation and barium chromate scavenginz to remove radium activity. ~