rise to much confusion, for the following reasons: First, later authors
have not properly recognized the work of earlier laborers in the field.
Second, the attempt has more frequently been made to establish an ethnic
classification than a linguistic classification, and linguistic
characteristics have been confused with biotic peculiarities, arts,
habits, customs, and other human activities, so that radical differences
of language have often been ignored and slight differences have heen
held to be of primary value.

The attempts at a classification of these languages and a corresponding
classification of races have led to the development of a complex, mixed,
and inconsistent synonymy, which must first be unraveled and a selection
of standard names made therefrom according to fixed principles.

It is manifest that until proper rules are recognized by scholars the
establishment of a determinate nomenclature is impossible. It will
therefore be well to set forth the rules that have here been adopted,
together with brief reasons for the same, with the hope that they will
commend themselves to the judgment of other persons engaged in
researches relating to the languages of North America.

A fixed nomenclature in biology has been found not only to be
advantageous, but to be a prerequisite to progress in research, as the
vast multiplicity of facts, still ever accumulating, would otherwise
overwhelm the scholar. In philological classification fixity of
nomenclature is of corresponding importance; and while the analogies
between linguistic and biotic classification are quite limited, many of
the principles of nomenclature which biologists have adopted having no
application in philology, still in some important particulars the
requirements of all scientific classifications are alike, and though