Melville Davisson Post was phonetically mis-spelt. Ellery Queen would later call the stories "an out-of-this-world target for future detective-story writers." In his 1924 book of literary criticism "Cargoes for Crusoes", Grant Overton called the publication of Post's "The Doomdorf Mystery" a "major literary event", and in "Murder for Pleasure" (1941), Howard Haycraft called Uncle Abner "the greatest American contribution" to the list of fictional detectives after Edgar Allan Poe's C. Auguste Dupin. After Post's death, more stories about Abner were written (at the request of the Melville Davisson Post estate) by the retired American research chemist, John F. Suter (1914-1996). Besides Mason, Abner,
Dupin cyclide Dupin cyclide In mathematics, a Dupin cyclide or cyclide of Dupin is any geometric inversion of a standard torus, cylinder or double cone. In particular, these latter are themselves examples of Dupin cyclides. They were discovered by (and named after) Charles Dupin in his 1803 dissertation under Gaspard Monge. The key property of a Dupin cyclide is that it is a channel surface (envelope of a one-parameter family of spheres) in two different ways. This property means that Dupin cyclides are natural objects in Lie sphere geometry. Dupin cyclides are often simply known as "cyclides", but the latter term is