[22] “Contributions à l’Étude de quelques Variétés Morphologiques de l’Oreille Humaine.” Revue d’Anthropologie, 15th April, 1886.
[23] Dr. F. Warner, “Form of Ear as a Sign of Defective Development.” Lancet, 15th Feb. 1890.
[24] Schwalbe, who distinguishes five principal forms of the Darwinian tubercle, regards it as normal, and believes that with a little practice it might be discovered in nearly all ears. This may well be, but in its distinctly marked form it can scarcely be called normal.
[25] See his paper, “Lo Scheletro e la forma del naso nei criminali, nei pazzi, negli epilettici e nei cretini,” in the Archivio di Psichiatria for 1888. Fasc. I.—Professor Héger, in a communication to the Société d’Anthropologie of Brussels, remarks that he is able to confirm many of Dr. Ottolenghi’s conclusions with reference to the nasal aperture in the cranium, by examination of the skulls of Belgian murderers.
[26] Almost as well marked as this tendency to fair hair among Italian sexual offenders—which possibly may be a question of race—is the predominance of blue eyes. Ottolenghi, who considers it as one of the most constant characters of the class, gives the following figures:—
| Blue. | Brown. | Greenish. | |||||||
| Normal persons | 29.04 | per cent. | 63.91 | per cent. | 7.05 | per cent. | |||
| Criminals | 35.80 | " | 59.50 | " | 4.70 | " | |||
| Sexual offenders | 49.60 | " | 45.76 | " | 4.64 | " | |||
Bichromatism (irregular colouring) of the iris is also found with unusual frequency in this class of offenders.
[27] Ottolenghi, “La canizie, la calvizie e le rughe nei criminali.” Archivio di Psichiatria, 1889, Fasc. I.
[28] The surgeon of Leeds prison, in his answers to my Questions, records his opinion that the red-haired are “relatively more prevalent” among prisoners than among the ordinary population. This opinion stands alone, nor is it supported by any figures.
[29] “Des Anomalies des organes génitaux chez les idiots et les épileptiques.” Progrès Medical, No. 7, 1888.