XXIX.

A _race_ is a class of individuals concerning which there are doubts as to whether they constitute a separate species, or a variety of a recognised one. Hence, the term is _subjective_; _i. e._ it applies to the _opinion of the investigator_ rather than to the _object of the investigation_; so that its power is that of the symbol for an unknown quantity in algebra. The present writer having, as yet, found no tribe or family, for which a sufficient reason for raising it to a new species has been adduced, has either not used the word _race_ at all, or used it inadvertently. Its proper place is in _investigation_ not in exposition.