Duncan Phillips first came into contact with the circle of artists surrounding Alfred Stieglitz in 1926. Over the years, Phillips gradually acquired work by Stieglitz, John Marin, Marsden Hartley, Arthur Dove and Georgia O'Keeffe, amassing one of the finest collections of American modernists in existence. A traveling exhibit highlighting this collection opens this weekend at the Georgia O'Keeffe Museum in Santa Fe, running through Jan. 2. Made up of 40 carefully chosen pieces of art, In the American Grain is a major exhibit that deserves a wide audience. (505) 946-1000.