March of intellect. [graphic] / No. 2Heath, William, 1795-1840, printmaker[approximately May 1829]engFantastical depiction of advancing technology that includes all manner of steam-powered or aerial contraptions, domestic appliances, tunnels to the North Pole and South America, and a circulating libraryTitle etched below image.Print signed using William Heath's device: A man with an umbrella.Approximate date of publication based on that assigned to the companion print. See no. 15779 in the Catalogue of prints and drawings in the British Museum, v. 11.Imprint continues: ... where political and other caricatues are daily pub. ...Sheet trimmed within plate mark.Not in the Catalogue of prints and drawings in the British Museum.