= Xe) Sample Sunshine Units Swanson Farm (#3), ‘Winnebago County, Illinois, Carrington-like silt loam, collected Septenber 30, 1953. (1) CL 108: Beltsville #531669, NH),AC extraction of 8 lbs, soil, 0-1" depth, 34.) g oxalate, 12.06 g oxide, 7.lh g Ca. - (2) CL 109: Beltsville #531670, NHAC extraction of 8 lbs, soil, 1-6" depth, 36.88 g oxalate, 12,80 g oxide, 7.3h g Ca. d. 15.80 + 0.37 2.5 + 0.17 Holcomb Farm (#), Rock County, Wisconsin, Carrington silt loam, September 29, 1953. CL 13h: Beltsville #531671, NH)AC extraction of 8 lbs, soil, O=-1" depth, 35.92 g oxalate, 12.4 g oxide, 7.02 g Ca. 8.73 + 0.19 (2) CL 135: Beltsville #531672, NHAC extraction of 8 lbs, soil, 1-6" depth, 43.3 g 1.75 + 0.59 (1) oxalate, 15.1 g oxide, 9.05 g Ca. Ce lewke Farm (#5), Dane County, Tlisconsin, Miami silt loam, collected September 30, 1953. (1) (2) CL115: Beltsville #531673, NHAC extrac- 10.20 + 0.34 CL116: Beltsville #531674, NH) AC extrace 2.93 + 0.15 tion of 8 Ibs, soil, 0-1" depth, 17.19 ¢ oxalate, 6.50 g oxide, 4,65 g Ca. tion of 8 lbs, soil, 1-6" depth, 20.77 g oxalate, 7.82 g oxide, 5.59 g Ca, f. Premo Farm (#6), Columbia County, isconsin, Miami silt loam, collected September 30, 1953. (1) CL 101: Beltsville #531675, NHAC extraction of 8 lbs. soil, 0-1" depth, 13.1 + 0.3 17.87 g oxalate, 6.66 g oxide, 4.77 g Cae (2) CL 102: Beltsville #531675, 8 lbs, soil leached with HCl after NH)AC extraction, 12.5 + 0.8 O~1" depth, 7.51 g oxalate, 2.90 g oxide, 2.07 g Ca. ad (3) : CL 136: Beltsville #531676, NHAC extraction of 8 lbs. soil, 1-6" depth, 30.19 g oxalate, 10.2 g oxide, 6.05 g Ca. wat 2.54 + 0.10 DOE ARCHIVES [oF