Donogoo-Tonka or The Miracles of Science: A Cinematographic Tale is a mock film scenario written by the French novelist Jules Romains. It was first published in book form in 1920, and has never been translated into English. The satirical plot concerns a famous geographer whose academic career is about to be derailed by the revelation that he has invented a city in South America. Through a hilarious sequence of events, a suicidal young man finds a new mission in life by undertaking to build the fictional city, thereby redeeming the error and reputation of the absentminded professor.