[Footnote 56: Hyrtl, of Vienna, however, examined thirty subjects, and found the anomaly in question only three times, and exclusively in females. He attributed it to tight lacing. D.J. Cunningham, "The Occasional Eighth True Rib in Man," _Journal of Anatomy and Physiology_, Vol. XXIV, p. 127.] [Footnote 57: H. Campbell, _loc. cit._, p. 133.] [Footnote 58: Krafft-Ebing, _Psychopathia Sexualis_, p. 14; Campbell, _loc. cit._, pp. 199-215; Ploss, _loc. cit._, Vol. I, p. 313.] [Footnote 59: A. Hegar, _Der Geschlechtstrieb_, p. 7.] [Footnote 60: H. Campbell, _loc. cit._, p. 115.] [Footnote 61: J. Hayem, _Du sang et de ses alterations anatomiques_, pp. 184, 185.] [Footnote 62: E. Lloyd Jones, "Further Observations on the Specific Gravity of the Blood in Health and Disease", _Journal of Physiology_, Vol. XII, pp. 299ff.] [Footnote 63: O. Leichtenstern, _Untersuchungen über den Hæmoglobulingehalt des Blutes_, p. 38.] [Footnote 64: _Loc. cit._, pp. 316ff.] [Footnote 65: Ibid., pp. 316ff.] [Footnote 66: E. Bourgoin, art. "Urines", _Dictionnaire encyclopédique des sciences médicales_.] [Footnote 67: Delaunay, _loc. cit._] [Footnote 68: Delaunay, _loc. cit._; Ploss, _Das Weib_, Vol. I, pp. 36, 37; Ellis, _loc. cit._, pp. 231ff.] [Footnote 69: Ellis, _loc. cit._, p. 252.] [Footnote 70: Campbell, _loc. cit._, pp. 117 and 119.] [Footnote 71: Max Bartels, "Culturelle und Rassenunterschiede in Bezug auf die Wundkrankheiten". _Zeitschrift für Ethnologie_, Vol. XX, p. 183.] [Footnote 72: Legouest, art. "Amputations", _Dictionnaire encyclopédique des sciences médicales_.] [Footnote 73: Ellis, _loc. cit._, p. 132.] [Footnote 74: A. von Oettingen, _loc. cit._, p. 780.] [Footnote 75: Lombroso e Ferrero, _loc. cit._, chap. 16.] [Footnote 76: Lombroso e Ferrero, _loc. cit._, chap. 16.] [Footnote 77: P. xxi, Table F, quoted by Campbell, _loc. cit._, p. 124.] [Footnote 78: B.A. Whitelegge, "Milroy Lectures on Changes of Type in Epidemic Diseases," _British Medical Journal_, March 18, 1893.] [Footnote 79: A. Newsholme, _Vital Statistics_, 3d ed., p. 178.] [Footnote 80: W. Farr, _Vital Statistics_, p. 385.] [Footnote 81: Mortality from cancer is, however, much higher in women than in men. Newsholme, _loc. cit._, p. 208.] [Footnote 82: Ploss, _Das Weib_, Vol. I, p. 26.] [Footnote 83: Von Oettingen, _loc. cit._, p. 58.] [Footnote 84: Ploss, _Das Weib_, Vol. I, p. 207.] [Footnote 85: Ellis, _loc. cit._, p. 432.] [Footnote 86: Ploss, _Das Weib_, Vol. I, p. 206.] [Footnote 87: Depaul, art. "Nouveau-né," _Dictionnaire encyclopédique des sciences médicales_.] [Footnote 88: B. Ornstein, "Makrobiotisches aus Griechenland," _Archiv für Anthropologie_ Vol. XVII, pp. 193ff.] [Footnote 89: G. Mayr, _Die Gesetzmässigkeit im Gesellschaftsleben_ (1877), p. 144.] [Footnote 90: V. Turquan, "Statistique des centénaires," _Revue scientifique_ September 1, 1888.] [Footnote 91: Lombroso e Ferrero, _loc. cit._, chap. 10.]