  Williams’ treatment of induction created quite a stir when it appeared, but attracted criticisms of varying power from commentators wedded to more defeatist attitudes, and was eclipsed by the Popperian strategy of replacing an epistemology of confirmation with one that focused on refutation. It thus exercised less influence than it deserves. It is a closely reasoned, deductively argued defense of the rationality of inductive inference, well meriting continued attention.