Poets composing verse under the influence of gases specific to particular genres, analogous to laughing gas. Coloured etching by R. Seymour after himself, 1829.

London (26 Haymarket) : Thos. McLean, 1829.

1 print : etching, with watercolour ; platemark 24.8 x 34.9 cm

The march of intellect. Professional. Poetry. Designed & etched by R. Seymour. Lettering under the vignette: "This is not the Laughing, but the Hippocrene or Poetic Gas, Sir: the gentleman you see inspired here is throwing out the rough materials for an Heroic poem. We have various sorts, as the Terrific, much in request; the Simple, by which all the new songs are done, and many others."

Wellcome Collection 525733i