"Ode on a Grecian Urn" and "Ode on Melancholy" were inspired by sonnet forms and probably written after "Ode to a Nightingale". Keats' new and progressive publishers Taylor and Hessey issued "Endymion", which Keats dedicated to Thomas Chatterton, a work that he termed "a trial of my Powers of Imagination". It was damned by the critics, giving rise to Byron's quip that Keats was ultimately "snuffed out by an article", suggesting that he never truly got over it. A particularly harsh review by John Wilson Croker appeared in the April 1818 edition of "The Quarterly Review". John Gibson Lockhart writing in "Blackwood's Magazine", described "Endymion" as "imperturbable drivelling idiocy". With biting sarcasm, Lockhart advised, "It is a better and a wiser thing to be a starved apothecary than a starved poet; so back to the shop Mr John, back to plasters, pills, and ointment boxes." It was Lockhart at "Blackwoods" who coined the defamatory term "the Cockney School" for Hunt and his circle, which included both Hazlitt and Keats. The dismissal was as much political as literary, aimed at upstart young writers deemed uncouth for their lack of education, non-formal rhyming and "low diction". They had not attended Eton, Harrow or Oxbridge and they were not from the upper classes.