WAUSAU PAPER MILLS CO <WSAU> 2ND QTR NET Period ended Feb 28 Shr 61 cts vs 56 cts Net 2,764,000 vs 2,540,000 Sales 60.4 mln vs 55.8 mln Six mths Shr 1.27 dlrs vs 1.15 dlrs Net 5,741,000 vs 5,269,000 Sales 122.8 mln vs 109.9 mln NOTE: Per-share data restated for 10 pct stock dividends paid to holders of record Dec 26, 1986 and Dec 26, 1985