It is not the intention of this introduction to psychology to discuss the scientific or philosophical conceptions of psychology, or even to make a survey of the investigations and their results. What this little book attempts is rather to introduce the reader to the principal thoughts underlying present-day experimental psychology, leaving out many facts and methods which would be necessary for a thorough study of the subject. - W. Wundt The present volume is a popular introduction to the Wundtian psychology. It is a shorter and simpler sketch than the same author's Outlines of Psychology, and it should prove invaluable to the English-speaking student who wishes to gain some conception of the subject before entering upon a deeper study of the same. Its popularity in Germany has been phenomenal. - R. Pintner (translator) This new edition comes with an Easy-to-Read layout designed to make reading comfortable.