ABSTRACT
Russell’s first major work in logic and foundations was undoubtedly his Principles, of which part I and appendix B are probably the most interesting. Furthermore, the Introduction to the second edition (1937) gave a summary and evaluation of works related to his original interests, done by himself and others during the thirty-four inter vening years. Since he did nothing in this area after 1937, it seems reasonable to use this book as a preliminary guide to a discussion of his work in logic.1
