- The foetus is buried by the woman. - "The Bontoc Igorot", Albert Ernest Jenks.
- The ration fed should contain the necessary inorganic and organic elements for the building up of the body tissues of the foetus. - "Common Diseases of Farm Animals", R. A. Craig, D. V. M..
- If it is a double foetus with one head, the land will be safe. - "Babylonian-Assyrian Birth-Omens and Their Cultural Significance", Morris Jastrow.