"Mundus alter" is a satirical description of London, with some criticism of the Roman Catholic Church, and is said to have furnished Jonathan Swift with hints for "Gulliver's Travels".It is classified as a Menippean satire, and was almost contemporary with another such satire by John Barclay, "Euphormionis Satyricon", with which it shares the features of being written in Latin (Hall generally wrote in English), and a concern for religious commentary.