ditionally aware of
their common descent reckoned in the female line. At this stage of
development there was quite generally though not universally prevalent
the custom of "exogamy," by which a man was forbidden to marry a woman
of his own clan. Among such Australian tribes as have been studied, this
primitive restriction upon promiscuity seems to be about the only one.

[Footnote 62: [Greek:
All' age moi tode eipe kai atrekeos katalexon,
ei de ex autoio tosos pais eis Odyseos.
ainos gar kephalen te kai ommata kala eoikas
keino, epei thama toion emisgometh' alleloisin,
prin ge ton es Troien anabemenai, entha per alloi
Argeion hoi aristoi eban koiles epi neusin
ek tou d' out' Odysea egon idon out' eme keinos.

Ten d' au Telemachos pepnymenos antion euda
toigar ego toi, xeine, mal' atrekeos agoreuso.
meter men t' eme phesi tou emmenai, autar egoge
ouk oid'; ou gar po tis heon gonon autos anegno.]
_Odyssey_, i. 206.]

[Footnote 63: Lumholtz, _Among Cannibals_, p. 213; Lubbock,
_Origin of Civilization_, p. 107; Morgan, _Ancient Society_,
part iii., chap. iii. "After battle it frequently happens among
the native tribes of Australia that the wives of the conquered,
of their own free-will, go over to the victors; reminding us of
the lioness which, quietly watching the fight between two
lions, goes off with the conqueror." Spencer, _Principles of
Sociology_, vol. i. p. 632.]

[Footnote 64: The notion of the descent of the human race from
a single "pair," or of different races from different "pairs,"
is a curious instance of transferring modern institutions into
times primeval. Of course the idea is absurd. When the elder
Agassiz so emphatically declared that "pines have originated in
forests, heaths in heaths, grasses in prairies, bees in hives,
herrings in shoals, buffaloes in herds, men in nations" (_Essay
on Classification_, London, 1859, p. 58), he made, indeed, a
mistake of the same sort, so far as concerns the origin of Man,
for the nation is a still more modern institution than the
family; but in the other items of his statement he was right,
and as regards