Contents: what is a werewolf; werewolf metamorphosis compared with other branches of lycanthropy; spirits of werewolves; how to become a werewolf; werewolves and exorcism; werewolf in the British Isles, France, Germany, Austria-Hungary and Balkan Peninsula, Spain, Belgium, The Netherlands, Norway, Sweden, Iceland, Lapland, Finland, Russia and Siberia; werewolves and vampires and ghouls; lycanthropous brook in the Harz Mountains, or the case of the Countess Hilda Von Breber; werewolves and Maras of Denmark.