This is a memo book composed of 50 ruled index cards with a wire spiral binding. Most of the memo book is filled with handwritten notes made by Warfield on the occasion of his attendance at the Peirce Society Sesquicentennial meeting held 5-9 September 1989 in Cambridge, Mass, on the Harvard campus. Warfield was an attendee, spending 3 or 4 days there. He did not present any papers at the Peirce meeting, merely attended lectures.
