With some of the exogamous races it appears to be the rule to kill all female children , except the first-born when a female .
一些外婚种族中它表现为杀死所有女孩的规定，除非女孩是头胎出生的。
The opposition of exogamous and endogamous " tribes " on which his whole system rested not only remained unshaken , but was even universally acknowledged as the keystone of the whole history of the family .
At the outset of our argument it was seen that if it could be shown that exogamous tribes existed , and that the usual relations of savage tribes to each other were those of hostility , we should have found a social condition in which it was inevitable that wives should systematically be procured by capture .
Against mclennan 's exaggerated reputation in england -- and the english fashion is copied elsewhere -- it becomes a duty to set down the fact that be has done more harm with his completely mistaken antithesis between exogamous and endogamous " tribes " than he has done good by his research .
