This is a study edition of Charles Sanders Peirce's manuscripts for lectures on pragmatism given in spring 1903 at Harvard University. Excerpts from these writings have been published elsewhere but in abbreviated form. Turrisi has edited the manuscripts for publication and has written a series of notes that illuminate the historical, scientific, and philosophical contexts of Peirce's references in the lectures. She has also written a Preface that describes the manner in which the lectures came to be given, including an account of Peirce's life and career pertinent to understanding the philosopher himself. Turrisi's introduction interprets Peirce's brand of pragmatism within his system of logic and philosophy of science as well as within general philosophical principles.