[28] Luciani: Loc. cit., p. 542.
[29] Valenti: Loc. cit., p. 95.
[30] Bettmann: Philadelphia Monthly Medical Journal, 1899, i, p. 133.
[31] Wolff: Dissertation, Giessen, 1902, p. 9.
[32] His: Archiv für Anatomie, 1903, p. 345.
[33] Boldireff: Loc. cit., p. 1.
[34] Boldireff: Loc. cit., p. 96.
[35] See Cannon and Lieb: American Journal of Physiology, 1911, xxix, p. 267.
[36] Ducceschi: Archivio per le Scienze Mediche, 197, xxi, p. 154.
[37] See Cannon: American Journal of Physiology, 1903, viii, p. xxi; 1905, xiv, p. 344.