Letter to Shelley, August 1820, in H. E. Rollins (ed.) 'The Letters of John Keats' (1958) vol. 2, p. 323; echoing Edmund Spenser 'The Faerie Queen' (1596) bk. 2, canto 7, st. 28, l. 5: 'And with rich metal loaded every rift'
Edward Gibbon (2016). “EDWARD GIBBON Premium Collection: Historiographical Works, Memoirs & Letters: Including "The History of the Decline and Fall of the Roman Empire”, p.731, e-artnow