The present book is a collection of originally independent articles which were written at different times and for quite different occasions. Hence, the reader will find some of the fundamental ideas recurring throughout the book. The selection has been made in order to give a picture of the fields thus far studied, the psychology of the person and the environment, and at the same time to indicate their connections with the various applied fields, especially child psychology, pedagogy, psycho-pathology, characterology, and social psychology.
