Photographer Alfred 'Stieglitz's New;York gallery, which he opened in 1906, became a locus forseveral major 1930s painters."The modern" art that Stieglitz exhibited as early as 1907, as well as his sponsorship of young artists such as Max Weber, Marsden Hartley, Arthur Dove, Stantoh MacDonald- Wright, Georgia O'Keeffe, and John Marin, deeply influenced the direction American painting would take in the decades to come. Marsden Hartley (1877-1943),in his directness and his.unmediated love of the sea and of nature, can trace his artistic lineage to Winslow Homer as well as to the German Expressionism from which he learned. Georgia O'Keeffe'(1887-1986), whom Stieglitz married, provides an interesting bridge between the European-influenced modernists of the 1920s and the Regionalists of the 1930s: the Texan art teacher painted brigritly colored abstractions based on the wildflowers of her Texas childhood and later the bleached skulls and...