I choose for examination the fundamental type, as he is known to me through a number of concrete examples. This triad: “quickly roused, not particular as to choice, just as quickly cooled,” admits of numerous variations. Particularly the choice of the sexual object is something that in many woman chasers becomes determined on the basis of particular fetichistic preferences, such as red hair, virginity, a particular figure, a special occupation, etc. The Don Juan collectors of women are differentiated into various distinct classes. I knew one who for his record of adventures specialized in widows. The shorter the period of widowhood the greater was his ambition to make the conquest. Only women in mourning attracted him. But beyond this point he was not particular. It made no difference to him whether the woman was young or old, beautiful or homely, so long as she was a widow in mourning. His greatest pride he took in his conquest of widows on the burial day. _Oskar A. H. Smitz_, (in his _Cassanova und Andere erotische Charaktere_, Stuttgart, 1906, quoted after _Bloch_), has attempted to trace a fine distinction between the Don Juan and the Cassanova type: “Don Juan is a deceiving, cunning seducer to whom the sense of possessing the woman, the feeling of danger, and the pleasure of overcoming resistance and of exercising his manly strength are the chief things, but he is not erotic, whereas Cassanova is the erotic type par excellence; he, too, is tricky and remorseless, but he craves the satisfaction of his sensuous needs rather than of his sense of power. Don Juan sees only women, for Cassanova every woman is “the woman.” Don Juan is demonic, devilish, he deliberately plans the destruction of the women who yield to him and drives them to perdition, while Cassanova is humane, he is always interested in the happiness of his sweethearts and preserves of them tender memories. Don Juan hates woman, he is a typical misogynist, the satanic type of woman hater, whereas Cassanova is a typical feminist, he has a deep and sympathetic understanding of woman’s soul, he is not deceived by his love affairs but needs continual intercourse with women as the condition of his happiness. Don Juan seduces through his demonic character, with the brutal, and wild, attraction exercised by his uncanny power, Cassanova achieves his conquests through the more refined gentle atmosphere generated by his charming presence.”