Studies causation both as a concept and as it is 'in the objects.' Offers new accounts of the logic of singular causal statements, the form of causal regularities, the detection of causal relationships, the asymmetry of cause and effect, and necessary connection, and it relates causation to functional and statistical laws and to teleology. `It is a singularly impressive and powerful essay and one that will provide a basis for comment and controversy about causation and allied problems for a long time to come.' D. J. O`Connor, British Journal for the Philosophy of Science