8
Translator's note.
The female of the European cuckoo (cuculus canorus) keeps intercourse with several males in different districts during the same season. Still, this is far from the human polyandry, in which the men and one women all live together in the same place, the men mutually tolerating one another, which male cuckoos do not.
9
Westermarck, The History of Human Marriage, London, 1891.
10
Espinas, Des Societes Animales, 1877.
11
Espinas, l. c., quoted by Giraud-Teulon, Origines du mariage et de la famille, 1884, p. 518-20.