Stefan Zweig (2015). “The Collected Novellas of Stefan Zweig: Burning Secret, A Chess Story, Fear, Confusion, Journey into the Past”, p.15, Pushkin Press
Jonathan Swift, John Hawkesworth (1755). “The Works of Jonathan Swift, D.D. Dean of St. Patrick's, Dublin: Accurately Revised in Six Volumes, Adorned with Copper-plates : with Some Account of the Author's Life and Notes Historical and Explanatory”, p.202
James Hutton (1788*). “Theory of the earth; or an investigation of the laws observable in the composition, dissolution and restoration of land upon the globe. (From. the Trans., Roy. soc. of Edinb.).”, p.86
John Adams, Charles Francis Adams (1851). “The Works of John Adams, Second President of the United States: With a Life of the Author, Notes and Illustrations”, p.197