This fascinating volume contains a comprehensive treatise on human emotion, with chapters on love, submission, dominance, consciousness, and more. Written in simple, accessible language and full of interesting explorations of theorems and original expositions, this volume will be of considerable value to those with a keen interest in psychology, and would make for a great addition to collections of allied literature. The chapters of this volume include: 'Normalcy and Emotion', 'Materialism', 'Vitalism and Psychology', 'The Psychonic Theory', 'Of Consciousness', 'Motor Consciousness as the basis of Feeling and Emotion', 'Integrative Principles of Primary Feelings', et cetera. William Moulton Marston (1893 – 1947), also known by the pen name Charles Moulton, was an American psychologist, inventor and comic book writer who created the character Wonder Woman. We are republishing this antiquarian volume now complete with a new prefatory biography of the author.