Ambrose Bierce (2013). “The Best Of Ambrose Bierce: The Damned Thing + An Occurrence at Owl Creek Bridge + The Devil's Dictionary + Chickamauga (4 Classics in 1 Book)”, p.75, e-artnow
Joseph Priestley (1966). “The History and Present State of Electricity: With Original Experiments. Reprinted from the 3d Ed., London, 1755, with an Appendix Containing Two Additional Papers of Original Experiments by the Author, and a New Introd. by Robert E. Shofield”
Herodotus (1875). “The History of Herodotus: A New English Version, Ed. with Copious Notes and Appendices, Illustrating the History and Geography of Herodotus, from the Most Recent Sources of Information; and Embodying the Chief Results, Historical and Ethnographical, which Have Been Obtained in the Progress of Cuneiform and Hieroglyphical Discovery”, p.372