[12] I Caratteri dei Delinquenti, 1886, Turin.
[13] Méd. de l’Esprit, ii.
[14] Lamartine, Cours de Littérature, ii.
[15] Revue Britannique, 1884.
[16] Canesterini, Il Cranio di Fusinieri, 1875.
[17] Plutarch, Life of Pericles, iii.
[18] Kupfer, “Der Schädel Kants,” in Arch. für Anth., 1881.
[19] Welcker, Schiller’s Schädel, 1883.
[20] Mantegazza, Sul Cranio di Foscolo, Florence, 1880.
[21] Turner, Quarterly Journal of Science, 1864.