Frederick Cornwallis Conybeare,
1911 Encyclopædia Britannica
(1911)
“ In most primitive societies the chief sources of ritual pollution are birth, death, bloodshed, blood, especially menstruous blood. Numberless other things are or have been taboo among different peoples, such as trees, colours, foods and drinks, persons, places, seasons. Persons and things brought even involuntarily into contact or association with these are tabooed, and only recover their normal condition by some rite of purification or catharsis. Such rites operate by the transference elsewhere of the stain or impurity contracted. ”
