Comma titles that follow a name: "John Smith, Ph.D." Similarly in lists that are presented with an inversion: "...; socks, green: 3 pairs; socks, red: 2 pairs; tie, regimental: 1". Commas may be used to indicate that a word, or a group of words, has been omitted, as in "The cat was white; the dog, brown." (Here the comma replaces "was".) Commas are placed before, after, or around a noun or pronoun used independently in speaking to some person, place or thing: In his 1785 essay "An Essay on Punctuation", Joseph Robertson advocated a comma between the subject and predicate of
Irony punctuation mark was used earlier by Marcellin Jobard in an article dated June 11, 1841, and commented in an 1842 report. Hervé Bazin, in his 1966 essay "Plumons l'Oiseau" (“Let's pluck the bird”), used the Greek letter ψ with a dot below for the same purpose . In the same work, the author proposed five other innovative punctuation marks: the “doubt point” , “conviction point” , “acclamation point” , “authority point” , and “love point” . In March 2007, the Dutch foundation CPNB "(Collectieve Propaganda van het Nederlandse Boek)" presented another design of an irony mark, the "ironieteken": (). Tom Driberg