7. Since the fixation of the Celtic, it has been considered that the Ossetic is Indo-European.

8. Since the consideration of the Ossetic as Indo-European, the Georgian has been considered as Indo-European likewise.

Now the criticism of the theory which makes the Georgian to be Indo-European, is closely connected with the criticism of the theory which makes the Ossetic and the Malay to be Polynesian; and this the writer reserves for a separate paper. All that he does at present is to express his opinion, that if any of the seven last-named languages are Indo-European, they are Indo-European not by real addition, in the way of recognised relationship, but by a verbal extension of the power of the term Indo-European. He also believes that this is the view which is taken, more or less consciously or unconsciously, by the different authors of the different classifications themselves. If he be wrong in this notion, he is at issue with them as to a matter of fact; since, admitting some affinity on the part of the languages in question, he denies that it is that affinity which connects the Greek and German, the Latin and Lithuanian.

On the other hand, if he rightly imagine that they are considered as Indo-European on the strength of some other affinity, wider and more distant than that which connects the Greek with the German, or the Latin with the Lithuanic, he regrets that such an extension of a term should have been made without an exposition of the principles that suggested it, or the facts by which it is supported; principles and facts which, when examined by himself, have convinced him that most of the later movements in this department of ethnographical philology, have been movements in the wrong direction.

There are two principles upon which languages may be classified.

According to the first, we take two or more languages as we find them, ascertain certain of their characteristics, and then inquire how far these characteristics coincide.

Two or more languages thus taken agree in having a large per-centage of words in common, or a large per-centage of grammatical inflexions; in which case they would agree in certain positive characters. On the other hand, two or more such languages agree in the negative fact of having a small and scanty vocabulary, and an inflexional system equally limited; whilst, again, the scantiness of inflexion may arise from one of two causes. It may arise from the fact of inflexions having never been developed at all, or it may arise from inflexions having been lost subsequent to a full development of the same. In all such cases as these, the principle of classification would be founded upon the extent to which languages agreed or differed in certain external characteristics; and it would be the principle upon which the mineralogist classifies minerals. It is not worth while to recommend the adoption of the particular term mineralogical, although mineralogy is the science that best illustrates the distinction. It is sufficient to state, that in the principle here indicated, there is no notion of descent.

It is well known that in ethnographical philology (indeed in ethnology at large) the mineralogical principle is not recognised; and that the principle that is recognised is what may be called the historical principle. Languages are arranged in the same class, not because they agree in having a copious grammar or scanty grammar, but because they are descended (or are supposed to be descended) from some common stock; whilst similarity of grammatical structure, and glossarial identity are recognised as elements of classification only so far as they are evidence of such community of origin. Just as two brothers will always be two brothers, notwithstanding differences of stature, feature, and disposition, so will two languages which have parted from the common stock within the same decennium, be more closely allied to each other, at any time and at all times, than two languages separated within the same century; and two languages separated within the same century, will always be more cognate than two within the same millennium. This will be the case irrespective of any amount of subsequent similarity or dissimilarity.

Indeed, for the purposes of ethnology, the phenomena of subsequent similarity or dissimilarity are of subordinate importance. Why they are so, is involved in the question as to the rate of change in language. Of two tongues separated at the same time from a common stock, one may change rapidly, the other slowly; and, hence, a dissimilar physiognomy at the end of a given period. If the English of Australia were to change rapidly in one direction, and the English of America in another, great as would be the difference resulting from such changes, their ethnological relation would be the same. They would still have the same affiliation with the same mother-tongue, dating from nearly the same epoch.