TABLE 1 BIOSPHERE Sr9° ASSAY WISCONSIN MILKSHED -- SEPTEMBER 30, 1955 (0.001 Mpc Units unless otherwise Stated) FARM Q"-2" Holcomb, Wisconsin con 26.7 £ 1.0 3.6 “Men1953 Value 1955 Value .1% 4.8 5.1 19.2 + 1.0 8.3 3.8 25.5 1.3 hed 15.0 £ 0.5 (0"-6") 10.6 Kurpeski, Illinois * 12.2 t O.K (0"-6.5") 10.4 4.0 9.6 + 0.4 16.5 4.7 38.0 £ 2.0 5.0 0.99% 10.6 6.3 30.5 1.7 14.8 =» McKee, Dllinois 49.9 1.3 9.8 + 0.4 .O% — 1955 Value Premo, Wisconsin * Austin, Illinois Ven Winkle, Illinois 65.1 42.6 10.0 + 0.4 9.4. 3.8 Carver, Illinois 64.5 1.3 14.0 £ 0.7 8.9 3.3 Average Sr? (me/mi2) * Had been plowed to 6" depth. 72! “ofas®) 1953 Value 2"-6" 12.0 , 4.5 705+ ' .33 7.4 §.76 + 0.29 5.0 2.3 + 0.18 2.3