An Introduction to Social Psychology by William McDougall  - This is  a P.D.F Ebook.

A pioneering work in psychology, this enormously influential book, first published in 1908, served as a catalyst in the study of the foundations of social behavior. One of the first surveys to focus on human motivation, the volume assisted in laying the foundations of a new discipline, separating the field from sociology and general psychology. Popular, long-lived and ever relevant, this landmark book remains invaluable to teachers and students of psychology. 1961 ed. Among the topics covered: The place of instincts in the constitution of the human mind; Primary emotions of man, and the nature of sentiments; Growth of reproductive and parental instincts; Structure of character.