Abstract

The paper distinguishes between epistemic and ontic divisions of qualities into primary and secondary. It identifies two functions which ontic division has been called upon to fulfill - setting the limits on what a realist philosophy of science must achieve, And providing a means of judging between rival realist philosophies of science. It argues for an interaction pattern criterion of primacy, And concludes that while this enables the first function to be achieved, No primary/secondary distinction can fulfill the second