C. Auguste Dupin discussing Dupin's method in the light of Charles Sanders Peirce's logic of making good guesses or "abductive reasoning," Nancy Harrowitz first quotes Poe's definition of analysis and then shows how "Poe the semiotician is running the gamut of possibilities here—inferences, reasoning backwards, visual, sensual and aural signs, reading faces. Playing cards with the man would have been an interesting experience." There is considerable controversy about the philosophical nature of Dupin's method. According to biographer Joseph Krutch, Dupin is portrayed as a dehumanized thinking machine, a man whose sole interest is in pure logic. However, Krutch has been accused elsewhere of
Jack Spratt (fictional detective) Inspector with the Reading, Berkshire "Nursery Crimes Division", with his assistant Sergeant Mary Mary (another nursery rhyme character). Spratt and Mary were originally introduced into the alternate Fforde universe in the Thursday Next novel "The Well of Lost Plots" (2003) before taking over their own "Nursery Crimes" series: Jack Spratt (fictional detective) Jack Spratt is the protagonist in a series of alternate history science fiction fantasy novels by Jasper Fforde. He was named after the character from the English nursery rhyme. As revealed in "The Big Over Easy", for example, he hates eating fat, and was once married to a