LONDON.- Two of the Scotlands finest women artists, Anne Redpath and Dame Elizabeth Blackadder, are strongly represented in the years Scottish Sale at Bonhams on 17 August. Redpaths beautiful and subtle view of Cagnes-sur-Mer on the French Riviera painted in the late 1930s (£60,000 80,000) is one of the artists first major hill town oils rendered in the characteristic chalky palette of the period. Another work from her white period, Still Life with Michaelmas Daisies (£30,000 50,000) employs Redpaths favoured motifs of the arc of a table, crockery and cropped jug. Houses on the Lagoon, Murano (£30,000 50,000) by contrast is a very late work from 1964, when according to many commentators, her painting achieved a purity in which form and content had become inseparable. These qualities are also evident in two scintillating Portugues