When published in 1948 this volume encountered a storm of condemnation and acclaim. It is, however, a milestone on the path toward a scientific approach to the understanding of human sexual behavior. Dr. Alfred C. Kinsey and his fellow researchers sought to accumulate an objective body of facts regarding sex. They employed first hand interviews to gather this data. This volume is based upon histories of approximately 5,300 males which were collected during a fifteen year period. This text describes the methodology, sampling, coding, interviewing, statistical analyses, and then examines factors and sources of sexual outlet.