Cover -- Table of Contents -- Phaneroscopy, Semeiotik, Logik Eine Einführung -- Reasoning -- Scientific Method -- Notes for a Syllabus of Logic -- Exact Logic. Introduction. What is Logic? -- Logic. The Theory of Reasoning by C.S. Peirce -- Logic Viewed as Semeiotic -- Logic as the General Theory of Signs of all Kinds -- Phaneroscopy: Or, the Natural History of Concepts -- Phaneroscopy -- Signs, Thoughts, Reasoning -- Logic. Book I. Analysis of Thought -- Common Ground -- How to Define -- Essays Toward the Full Comprehension of Reasonings Preface -- Quest of Quest. An Inquiry into the Conditions of Success in Inquiry -- An Appraisal of the Faculty of Reasoning -- Part II. Mathematical Reasoning -- Bibliography -- Index of Technical Terms -- Name Index.