New York: International Universities Press, Inc., 1960. Hardcover. xiii, 422p., the first American edition in this collected format, hardbound in 9x6 inch black cloth boards gilt and dust jacket. A good clean copy; has a neat small ownership on the ffep, the dj is badly chipped (with no loss of its texts), every other aspect is very good. Contains some forty pages on "The Problem of Male Homosexuality"