The Philological objections to the proposition that the North American Tribes are of Asiatic origin have by many writers been regarded as insuperable. Du Ponceau, who has given profound attention to the subject, dwells, 1, On the differences in words among the American languages themselves; 2, On the failure which he imputes to those writers who have attempted to identify the Indians with some one individual Asiatic nation, as the Chinese, the Tartars, or the Jews, &c.; and 3, On the differences in the Grammars of the North American dialects and those of the languages of the Old World, which he treats as a conclusive refutation of all arguments in favour of original unity! Mr. Catlin also lays great stress on the first of these considerations, viz. the great differences he found in the words of the dialects of the Tribes he visited. To every one of these objections the general principles developed in the previous pages will be found to involve a complete answer. 1. The differences apparently fundamental in the words of American languages may be accounted for in the same manner as similar differences in the languages of the old world (the Gothic and Celtic for example,) have already been explained, viz. by the tendency to abandon different synonymes. 2. That attempts to prove a close specific relation between the North American dialects and any one Asiatic language, such as the Chinese or the Hebrew, should have failed, was to be expected as a consequence of the same tendency. 3. Finally, differences of Grammar have been shown to be fallacious evidence viewed separately and without due regard to other features of language.(137) Moreover, it will presently appear clearly that, even as regards the Grammar of the Indian Dialects, Du Ponceau’s impressions can be distinctly proved to be erroneous, an extended comparison serving to render manifest the interesting fact that, as respects the elements of Grammar, these dialects perfectly agree with the Asiatic and European languages, while in the mode of combining those elements, they do not differ from those languages more widely than the latter differ among themselves. If the ancestors of the American Indians emigrated at a remote period from the opposite Asiatic Coasts, we have no right to anticipate in their dialects a complete conformity to any one language of the old world, but general and varying features of resemblance to several. The kindred dialects of the same Continent after the lapse of a considerable time do not exhibit any other kind of resemblance! Now this is the species of relation which the North American Indian dialects actually display when compared to the Languages of the Old World!