Argues for an interdependent relationship of form and matter in Aristotle's metaphysics Adriel M. Trott challenges the wholesale acceptance of the view that nature operates in Aristotle's work on a craft model, which implies that matter has no power of its own. Instead, she argues for a robust sense of matter in Aristotle in response to feminist critiques. She finds resources for thinking the female's contribution (and the female itself) on its own terms and not as the contrary to form, or the male. Using the image of a M�bius strip, Trott considers how semen and menses flow through Aristotle's account of generation. She weaves together scholarship on matter, form and generation in Aristotle; on the mythological, Hippocratic and Pre-Socratic treatments of the feminine and the elemental; and on feminist readings of material. In doing so, she demonstrates the interdependence of form and matter in Aristotle's biology.