180 
tion of the marriage laws as described im Native Tribes of 
Central Australia, plainly shows that elaborate precautions, 
no doubt quite unconsciously, are e taken to ensure free inter- 
press the Helen that the most feasible explanation is that 
at one time “promiscuity” was the general and universal rule 
as di marital relationshi Amongst  gregarious 
must theoretically be the rule, al- 
though in practice one or more of the stronger males will 
usurp to themselves all the females of the group. Promis- 
would lead to the extinction of the species. Hence is seen 
the utility of the emotion ros jealousy, wnich finds its fullest 
expression in man, and acts beneficially as a selective and 
is oiim, influence. Du an 2 it may also be noted, but 
omparatively primine form, and the remark of the 
me authors that it is but little developed and scarcely 
n amongst the Australian aborigines, throws an. inter- 
th o- 
pagation of the poche, sus the application of the principle 
"that he takes who can’ not finding favor with the cunning 
old men 1n the presence of se strong young men, it is found 
that the former gradually evolved what appears at first sight 
to be a most elaborate svstem of marital relationships, any 
neers t of whieh is punishable by death. Although 
the term "free intercrossing" seems inappropriate to such a 
rigid "d exclusive rend of marriage relationships, yet an 
examination of these reveals the fact that they in a most 
1 ! 
n 
rn Be ie in some than in others. In the first place, four 
groups were arranged, and these were subsequently sub- 
divided. If these first ASA are looked upon as a first genera- 
B's 
whom. the tribal customs would have to be his father 
and mother had they been mated. 
