EDITOR’S INTRODUCTION The present volume appeals to the editor of this series as one of the most significant books, viewed from the standpoint of the future of our educational theory and practice, that has been issued in years. Not only does the volume set forth, in language so simple that the layman can easily understand, the large importance for public education of a careful measurement of the intelligence of children, but it also... more...

MUIRHEAD LIBRARY OF PHILOSOPHY An admirable statement of the aims of the Library of Philosophy was provided by the first editor, the late Professor J. H. Muirhead, in his description of the original programme printed in Erdmann's History of Philosophy under the date 1890. This was slightly modified in subsequent volumes to take the form of the following statement: "The Muirhead Library of Philosophy was designed as a contribution to the History... more...

CHAPTER I THE PROBLEM DEFINED What is sex? Asexual and mixed reproduction; Origin of sexual reproduction; Advantage of sex in chance of survival; Germ and body cells; Limitations of biology in social problems; Sex always present in higher animals; Sex in mammals; The sex problem in the human species; Application of laboratory method. Sex, like all complicated phenomena, defies being crowded into a simple definition. In an animal or... more...

Page iii FOREWORD This book was written, originally and primarily, for use in a course entitled "Introduction to Contemporary Civilization," required of all Freshmen in Columbia College. It is an attempt to give a bird's-eye view of the processes of human nature, from man's simple inborn impulses and needs to the most complete fulfillment of these in the deliberate activities of religion, art, science, and morals. It is hoped that the book may... more...

FORWARD The present book is a continuation from "Psychoanalysis and the Unconscious." The generality of readers had better just leave it alone. The generality of critics likewise. I really don't want to convince anybody. It is quite in opposition to my whole nature. I don't intend my books for the generality of readers. I count it a mistake of our mistaken democracy, that every man who can read print is allowed to believe that he can read all... more...

CHAPTER IINTRODUCTION Science. Before attempting to define psychology, it will be helpful to make some inquiry into the nature of science in general. Science is knowledge; it is what we know. But mere knowledge is not science. For a bit of knowledge to become a part of science, its relation to other bits of knowledge must be found. In botany, for example, bits of knowledge about plants do not make a science of botany. To have a science of... more...

THE MIND AND ITS EDUCATION CHAPTER I THE MIND, OR CONSCIOUSNESS We are to study the mind and its education; but how? It is easy to understand how we may investigate the great world of material things about us; for we can see it, touch it, weigh it, or measure it. But how are we to discover the nature of the mind, or come to know the processes by which consciousness works? For mind is intangible; we cannot see it, feel it, taste it, or handle... more...

CHAPTER I. THE MOTHER AND HER CHILD. The Child's Right to Choose Its Ancestry—How This is Effected—The Mother the Child's Supreme Parent—Motherhood and the Woman Movement—The Immense Importance of Motherhood—Infant Mortality and Its Causes—The Chief Cause in the Mother—The Need of Rest During Pregnancy—Frequency of Premature Birth—The Function of the State—Recent Advance in... more...

SEXUAL SELECTION IN MAN. The External Sensory Stimuli Affecting Selection in Man—The Four Senses Involved. Tumescence—the process by which the organism is brought into the physical and psychic state necessary to insure conjugation and detumescence—to some extent comes about through the spontaneous action of internal forces. To that extent it is analogous to the physical and psychic changes which accompany the gradual... more...

RELIGION AND NEUROLOGY It is with no small amount of trepidation that I take my place behind this desk, and face this learned audience. To us Americans, the experience of receiving instruction from the living voice, as well as from the books, of European scholars, is very familiar. At my own University of Harvard, not a winter passes without its harvest, large or small, of lectures from Scottish, English, French, or German representatives of the... more...