Thus then, though we may take it that the prevailing element in the river-names of Europe is the Celtic, we must turn for assistance to all the languages that are cognate. And, for the double reason of their great antiquity and their great simplicity, we shall often find that the nearer we come to the fountain-head, the clearer and the more distinct will be the derivation. It will be seen also throughout the whole of these pages that, in examining the names of rivers, we must take not only a wide range of philological enquiry, but also an extensive comparison of these names one with another. The first step in the investigation is of course to ascertain, whenever it is possible, the most ancient forms in which these names are found. We should scarcely suspect a relationship between our Itchen and the French Ionne, if we did not know that the ancient name of the one was Icene, and of the other Icauna. Nor would we suppose that the Rodden of Shropshire was identical with the French Rhone, did we not know that the original name of the latter was the Rhodănus. In this, as in most other departments of philology, the industry of the Germans has been the most conspicuous. And Ernst Förstemann in particular, who has extracted and collated the ancient names of places in Germany up to the 12th cent., has furnished a store of the most valuable materials. And yet after all there will be occasions on which all the resources of philology will be unavailing. Then we can but gather together the members of the family and wait till science shall reveal us something of their parentage. Thus the Alme that wanders among the pleasant meads of Devon--the Alm that flows by the quaint dwellings of the thrifty Dutch--the Alma that courses through the dark pine forests of the far North--the Almo that waters the sacred vale of Egeria--and the Alma, whose name brings sorrow and pride to many an English household--all contain one wide-spread and forgotten word, at the meaning of which we can but darkly guess. CHAPTER II. ON THE ENDINGS _a_, _en_, _er_, _es_, _et_, _el_. We find that while there are many names of rivers which contain nothing more than the simple root from which they are derived, as the Cam, the Rhine, the Elbe, the Don, &c., there are others which contain the same root with various endings, of which the principal are _a_, _en_, _er_, _es_, _et_, _el_. Thus the Roth in Germany, contains a simple root; the Roth(a), Roth(er), and Rodd(en) in England, and the Röt(el) in Germany, contain the same with four different endings. The German Ise shows a simple root, and the Germ. Is(ar), Is(en), Eng. Is(is), Dutch Yss(el), Russ. Iss(et), shew the same with five different endings. So we have in England the Tame, the Tam(ar), and the Tham(es), &c. The question is--what is the value and meaning of these various additions?