A. MS. notebook
The purpose of logic the division of logic into speculative grammar, critic, and methodeutic. Why "methodeutic" as a name is preferred to "method" or "methodology." CSP's exposition begins with logical syntax.
logical Critic, Logic (modal see Modality), Methodeutic (see also Iogic Normative science), Lowell Lectures, Speculative grammar (see also Stecheology), Syntax