"Based on surveys made by members of the staff of Indiana University, and supported by the National Research Council's Committee for Research on Problems of Sex by means of funds contributed by the Medical Division of the Rockefeller Foundation."

Part I. History and method: Historical introduction -- Interviewing -- Statistical problems -- Validity of the data. Part II. Factors affecting sexual outlet: Early sexual growth and activity -- Total sexual outlet -- Marital status and sexual outlet -- Age of adolescence and sexual outlet -- Social level and sexual outlet -- Stability of sexual patterns -- Rural-urban background and sexual outlet -- Religious background and sexual outlet. Part III. Sources of sexual outlet: Masturbation -- Nocturnal emissions -- Heterosexual petting -- Pre-marital intercourse -- Marital intercourse -- Extra-marital intercourse -- Intercourse with prostitutes -- Homosexual outlet -- Animal contacts -- Clinical tables.