TABLE 3 = Cont'd. Union of South Afrioa, Pretoria Collection Period 1957 July to November December mo Sr90/m2 -—= 0.12 2 Cumulative mo Sr7°/mi2 0.87 2 0.03 0.01 0.99 z sr0 $r90 -0263 0.03 1958 4.91 4 lel February 0.06 3 0.01 1.15 2 0.03 March 0.11 2 0.00 1.26 2 0.03 April 0017 2 02.06 1.43 £ 0.07 3 3039 May O.l9 2 0.04 1.92 2 0.06 -- 0.92 June 0.02 + 02003 1.9 = 0.08 38 3.32 July August September October * Precipitation (inohes ) Values extrapolated to midpoint of collection period. - Lo -