 Among the informal paralogisms Walton includes: ad hominem, ad populum, ad misericordiam, ad ignorantiam, ad verecundiam, slippery slope, false cause, straw man, argument from consequences, faulty analogy, composition and division. In the category of sophisms he places ad baculum, complex question, begging the question, hasty generalization, ignoratio elenchi, equivocation, amphiboly, accent, and secundum quid. He also has a class of formal fallacies very much the same as those identified by Whately and Copi. The largest class in Walton’s classification is the one associated with argumentation schemes and ad-arguments, and these are the ones that he considers to be the most central fallacies. Nearly all the Aristotelian fallacies included find themselves relegated to the less studied categories of sophisms. Taking a long look at the history of fallacies, then, we find that the Aristotelian fallacies are no longer of central importance. They have been replaced by the fallacies associated with the ad-arguments.