The passage provides the title and author information for the book "An Introduction to Psychology" by John J. B. Morgan, Ph.D., and A. R. Gilliland, Ph.D., both of whom are professors of psychology at Northwestern University. The book was published in 1927 by The MacMillan Company in New York, and all rights are reserved.The passage provides the title and author information for the book "An Introduction to Psychology" by John J. B. Morgan, Ph.D., and A. R. Gilliland, Ph.D., both of whom are professors of psychology at Northwestern University. The book was published in 1927 by The MacMillan Company in New York, and all rights are reserved.