A kindred error is the separation of the phonetic from the mental element of language; they are really inseparable—no definite line can be drawn between them, any more than in any other common act of mind and body. It is true that within certain limits we possess the power of varying sounds by opening and closing the mouth, by touching the palate or the teeth with the tongue, by lengthening or shortening the vocal instrument, by greater or less stress, by a higher or lower pitch of the voice, and we can substitute one note or accent for another. But behind the organs of speech and their action there remains the informing mind, which sets them in motion and works together with them. And behind the great structure of human speech and the lesser varieties of language which arise out of the many degrees and kinds of human intercourse, there is also the unknown or over-ruling law of God or nature which gives order to it in its infinite greatness, and variety in its infinitesimal minuteness—both equally inscrutable to us. We need no longer discuss whether philology is to be classed with the Natural or the Mental sciences, if we frankly recognize that, like all the sciences which are concerned with man, it has a double aspect,—inward and outward; and that the inward can only be known through the outward. Neither need we raise the question whether the laws of language, like the other laws of human action, admit of exceptions. The answer in all cases is the same—that the laws of nature are uniform, though the consistency or continuity of them is not always perceptible to us. The superficial appearances of language, as of nature, are irregular, but we do not therefore deny their deeper uniformity. The comparison of the growth of language in the individual and in the nation cannot be wholly discarded, for nations are made up of individuals. But in this, as in the other political sciences, we must distinguish between collective and individual actions or processes, and not attribute to the one what belongs to the other. Again, when we speak of the hereditary or paternity of a language, we must remember that the parents are alive as well as the children, and that all the preceding generations survive (after a manner) in the latest form of it. And when, for the purposes of comparison, we form into groups the roots or terminations of words, we should not forget how casual is the manner in which their resemblances have arisen—they were not first written down by a grammarian in the paradigms of a grammar and learned out of a book, but were due to many chance attractions of sound or of meaning, or of both combined. So many cautions have to be borne in mind, and so many first thoughts to be dismissed, before we can proceed safely in the path of philological enquiry. It might be well sometimes to lay aside figures of speech, such as the “root” and the “branches,” the “stem,” the “strata” of Geology, the “compounds” of Chemistry, “the ripe fruit of