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SourcesDespretz C., Traité élémentaire de physique, Méquignon-Marvis, Libraire-éditeur, Paris, 1832, pag. 599, TAV. 11, fig. 324.
Drion Ch. - Fernet E., Traité de physique élémentaire, G. Masson éditeur, Paris, 1877, pag. 461, fig. 427.
Jamin J., Piccolo trattato di fisica, B. Pellerano, Napoli, 1880, pag. 340, fig. 272.
The indications that complete the voice "Working" have the following meaning: P = partial; R = repaired; * = used for the didactics; X = verification impossible.