Theodore Roosevelt

Protective coloration

African Game Trails, Syndacate Publishing Company, New York 1910, pp. 552-568.

Les oeufs enchantés

Paul Eudel, De tout un peu, derniers mélanges, H. Le Soudier, Paris 1912, pp. 291-296.

Flavio Filostrato

Iarchas' gift of prescience

Frederick Cornwallis Conybeare, The life of Apollonius of Tyana, William Heinemann, London 1921, Cap. III, §16.

Ippolito di Roma

Refutatio Omnium Haeresium

George Francis Legge, Philosophumena Or the Refutation of All Heresies, Vol. 1, The MacMillan Company, New York 1921.

Eduard Conzemius

Hocus-Pocus to keep the people in fear

Ethnographical survey of the Miskito and Sumu Indians of Honduras and Nicaragua, Government Printing Office, Washington 1932, p. 125.

Italo Ghersi

Il cantiniere infedele

Italo Ghersi, Matematica dilettevole e curiosa, Hoepli, Milano 1972.

Marcello Truzzi

Sherlock Holmes: Applied Social Psychologist

Marcello Truzzi, The Humanities as Sociology: An Introductory Reader, Charles E. Merrill Publishing Company, Columbus 1973, Cap. 7, pp. 93-126.

Calcolatori domestici

Carlo Sintini, Quiz e giochi matematici, Longanesi, Roma 1979, pp. 27-32.

Salvatore Cimò

Mesmerismo

Meraviglie cartomagiche - Carte truccate, Vol. 1, Carmelo Piccoli, Milano 1987, p. 162.

Douglas J. Lanska e Joseph T. Lanska

Franz Anton Mesmer and the Rise and Fall of Animal Magnetism: Dramatic Cures, Controversy, and Ultimately a Triumph for the Scientific Method

Harry Whitaker, Brain, Mind and Medicine: Essays in Eighteenth-Century Neuroscience, Springer, London 2007, pp. 301-320.