The general conclusions reached by the use of these concepts of selective adaptation would remain substantially true if the earlier, Darwinian and Spencerian, terms and concepts were substituted.

Under the circumstances, some latitude may be admissible in the use of terms.

The word "type" is used loosely, to denote variations of temperament which the ethnologists would perhaps recognize only as trivial variants of the type rather than as distinct ethnic types.

Wherever a closer discrimination seems essential to the argument, the effort to make such a closer discrimination will be evident from the context.
The ethnic types of today, then, are variants of the primitive racial types.

They have suffered some alteration, and have attained some degree of fixity in their altered form, under the discipline of the barbarian culture.