DOW CHEMICAL CO <DOW> 3RD QTR NET Shr 1.72 dlrs vs 87 cts Net 330,000,000 vs 167,000,000 Sales 3.36 billion vs 2.74 billion Avg shrs 192,200,000 vs 191,700,000 Nine mths Shr 4.62 dlrs vs 2.95 dlrs Net 888,000,000 vs 564,000,000 Sales 9.78 billion vs 8.31 billion Avg shrs 191,100,000 vs 191,500,000 NOTE: Earnings include a loss of 3.0 mln dlrs, or one ct a share in the 1986 quarter from early extinguishment of debt Earnings include losses in the nine months of 3.0 mln dlrs, or two cts a share vs 8.0 mln dlrs, or four cts a share from early extinguishment of debt