" “Virim ve shuivi” is a term which is applied only to incestuous relationships; it means literally ‘witchcraft of the sun or day’ in contradistinction to ‘witchcraft of the night’ (virim ve vitse e)."
" ‘Witches of the night’ are evil persons who bring misfortune, sickness, and death, more especially to agnates of whom they are envious or to individuals whose office and power they covet. Witchcraft is said to reside in the belly and may come forth at night in the guise of a nightjar."
“When Informants were asked to explain why incest is called ‘witchcraft of the sun’ they offered a number of reasons: unlike ‘witchcraft of the night’, witchcraft of the sun can be seen; if a brother and sister have intercourse they do wrong deliberately, knowing that it is a sin which not only brings trouble on themselves but imperils that safety of their kin".
Man in Africa
By Mary Douglas, Phyllis Mary Kaberry, Cyril Daryll Forde
First published in 1969
Published by Routledge, 2003
ISBN 0415263948, 9780415263948
Sociobiology: The New Synthesis
Edition: 25, illustrated, annotated
Published by Harvard University Press, 2000
ISBN 0674000897, 9780674000896
“…There is plenty of evidence of parent-child and sibling incest among humans. Nevertheless, very little human production is the result of these incestuous acts. Whatever the genetic advantages of bisexual reproduction may be in dispersing the genes, humans seem to behave like other “two-sexed species”. The incest taboo is a cultural aid to a behavior pattern that finds its proximate cause in, possibly, psychological mechanisms that inhibit desire or its expression”.
Sexual Nature, Sexual Culture
By Paul R. Abramson, Steven D. Pinkerton
Published by University of Chicago Press, 1995
ISBN 0226001814, 9780226001814
Main Entry: inbreeding
Date: circa 1842
1 : the interbreeding of closely related individuals especially to preserve and fix desirable characters of and to eliminate unfavorable characters from a stock
2 : confinement to a narrow range or a local or limited field of choice