XIII.

_Ethnological classification_ deals with _connexion in the way of descent and affiliation only_.--It has no such object as the arrangement of individuals or classes according to any common physical or moral characteristics, except so far as these indicate community of origin.

In the present condition of the science, the _appreciation_ of facts is of equal importance with the _collection_ of them.

A fact may be appreciated either as a _characteristic_, or as an _influence_.