J. Whitridge Williams, Obstetrics, 1903, p. 132.
Zeitschrift für Ethnologie, 1878, p. 19.
C. Pitre, Medicina Populare Siciliana, p. 47. In England, from notes sent to me by one correspondent, it would appear that the proportion of dark and sexually apt women to fair and sexually apt women is as 3 to 1. The experience of others would doubtless give varying results, and in any case the fallacies are numerous. See, in the previous volume of these Studies, "Sexual Selection in Man," Section IV.