From the Robin Catalogue:
340. Lecture I
A. MS., n.p., [1864-65], pp. 1-2, 4-10 of one draft; p. 4 of another draft (all are double pages).
Preface on the reforms of science, including reform in logic. Plan of the lectures.
734. Logic. Chapter 2. Formal Logic
A. MS., n.p., n.d., 53 pp.
Explanation of some of the basic terms of formal logic. The objects of logic are symbols; the business of logic is the classification of symbols. Logic itself is a symbol. Symbols: terms, propositions, and arguments. The syllogism.
Published as W 1:162-175 (as a MS numbered 94 by Writings).