The Review of Metaphysics, Vol. V, No. 4, June 1952, pp. 621-9.

• Carl G. Hempel, Some These of Empirical Certainty
• Roderick Firth, Comments
• Wilfrid Sellars, Comments
• Roderick Chisholm, Comments
• Paul Weiss, Comments
• Carl G. Hempel, Response to Comments