This seminar will explore the meaning and uses of the word "structure" in science and art. The purpose of these explorations is to provoke new ways of thinking about the world in terms of atoms and molecules and the laws that govern their behavior. The geometrization of space, a conceptual discovery fundamental to the rise of modern science, finds its origins in pictorial representation as developed in the renaissance. We will analyze this and other examples where the insights and concerns of artists and craftsmen provided the impetus for scientific discovery. The quantum mechanical view of matter and light, originating in the search for better incandescent materials, changed our conception of reality by introducing an ineliminable statistical uncertainty into the description of nature. Similarly, biology is being transformed by the elucidation of molecular structures involved in all living processes. This new micro-world of shapes and structures opens up possibilities for artistic and philosophical explorations not unlike the developments that followed advances in physics early in this century. The growth of scientific knowledge and the physical substrates of consciousness are deep problems in epistemology. By cutting across academic disciplines in search of the meaning of shapes and the nature of processes that act through them, the seminar will illuminate some of the psychological stances common to artists and scientists.