Elizabeth Gilmore Holt, The Triumph of Art for the Public: The Emerging Role of Exhibitions and Critics. Garden City (ny), Anchor Press/Doubleday, 1979. 530 + xxviii p., 48 illus., 7.50 $ (broché) Walter Cahn, Masterpieces: Chapter on the History of an Idea. Princeton, Princeton University Press (Princeton Essays on the Arts), 1979. 168 + xix p., 53 illus.