Friedrich Jacobsohn was a German urologist and writer on sex

Human sexuality

Human sexuality is the awareness of gender differences, and the capacity to have erotic experiences and responses. Human sexuality can also be described as the way someone is sexually attracted to another person whether it is to opposite sexes , to the same sex , to either sexes , or not being...

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Jacobsohn's book Geschlechtsleben und sexuelle Hygiene (1932) was written with Abraham Buschke

Abraham Buschke

Abraham Buschke was a Jewish German dermatologist who was a native of Nakel in the Province of Posen. In 1891 he received his doctorate in Berlin, and afterwards was a surgical assistant in Greifswald. Later he worked at dermatological clinics in Breslau under Albert Neisser and in Berlin with...

, a dermatologist and expert on venereal disease. Illustrated with some colour plates, it was translated into English, where it went through several editions. Given the different sexual needs of men and women, men were not encouraged to over-extend intercourse after orgasm: they should "enjoy sexual intercourse in normal fashion, without extensive preliminaries, without any attempt at artificial prolongation, but proceeding as quickly as may be to orgasm and ejaculation."

Works

• (with Abraham Buschke
  Abraham Buschke
  Abraham Buschke was a Jewish German dermatologist who was a native of Nakel in the Province of Posen. In 1891 he received his doctorate in Berlin, and afterwards was a surgical assistant in Greifswald. Later he worked at dermatological clinics in Breslau under Albert Neisser and in Berlin with...
  
  ) Geschlechtsleben und sexuelle Hygiene, Berlin und Leipzig: W. de Gruyter & Co., 1932. Translated by Eden
  Eden Paul
  Maurice Eden Paul, most commonly known simply as Eden Paul was a socialist physician, writer and translator.-Biography:...
  
   and Cedar Paul
  Cedar Paul
  Cedar Paul, née Gertrude Mary Davenport was a singer, author, translator and journalist.-Biography:Gertrude Davenport came from a musical family: she was the grand-daughter of the composer George Alexander Macfarren and the daughter of the composer Francis William Davenport...
  
  as Introduction to Sexual Hygiene, London: G. Routledge & Sons, 1932. American edition Sex Habits: A vital factor in well-being, New York: Emerson Books, 1936.