Perpetual Possibility1942 · Enamel on board, mounted on plywood20 x 16 1/8" (50.8 x 41.1 cm)Museum of Modern Art
Synthesis1936 · Watercolor, gesso, and wax on paper9 7/8 x 9 1/8" (25.3 x 23.4 cm)Museum of Modern Art
The Embryo1935 · Watercolor and graphite, with red and brown colored pencils, on cream card, prepared with a gesso-wax ground21.8 × 28.5 cm (8 5/8 × 11 1/4 in.)Art Institute of Chicago
Aesthetic Function in Space1928 · Oil on Masonite and cardboard with mirror, in artist-painted frame78.7 × 57.8 cm (31 × 22 3/4 in.)Art Institute of Chicago