Among the rivers noted for the slowness of their course, the most conspicuous is the Arar or Saone. Cæsar (_de Bell. Gall._) describes it as flowing "with such incredible gentleness that the eye can scarcely judge which way it is going." Seneca adopts it as a type of indecision--"the Arar in doubt which way to flow." Eumenius multiplies his epithets--"segnis et cunctabundus amnis, tardusque." The name Sauconna, Sagonna, Saonna, Saone, does not appear before the 4th cent., yet there does not seem any reason to doubt that it is as old as the other. Zeuss (_Die Deutschen_) and the Editor of "Smith's Ancient Geography" take this as the true Gallic name. And though Armstrong explains both the Arar and the Saone from the Celtic--referring the former to the Obs. Gael. _ar_, slow, and the latter to Gael. _sogh_, tranquil or placid, in which he may probably be correct, yet it by no means follows that the name of the Arar is Celtic, for _ar_ is an ancient root of the Indo-European speech. To the same root as the Saone I also put the Seine (Sequăna), and the Segre (Sicŏris), comparing them with Lat. _seg-nis_. The former of these rivers is navigable for 350 miles out of 414, and the latter is noted in Lucian as "stagnantem Sicorim." Some other rivers, in which the characteristic is less distinct, I also venture to place here, separating this root as well as I can from another p. 58. 1. _Germany._ SIGA, 10th cent. The SIEG. _Russia._ The SOJA. Joins the Dnieper. 2. _With the ending en._ _France._ SAUCONNA ant. The SAÔNE. SEQUANA ant. The SEINE. The SEUGNE. Dep. Charente-Inf. _Russia._ The SUCHONA. Joins the Dwina. 3. _With the ending er._ _Spain._ SICORIS ant. The SEGRE. The SEGURA. Enters the Med. Sea. Perhaps allied in its root to the last is the Gael. _saimh_, quiet, tranquil, to which I put the following. 1. _Belgium._ The SEMOY. _Russia._ The SEM or SEIM. Joins the Desna. SAIMA, a lake in Finland. _Asia Minor._ The SIMOIS of Homer--here? 2. _With the ending en._ _Switzerland._ The SIMMEN, in the Simmen-Thal. 3. _With the ending er._ _France._ SAMARA, ant., now the SOMME. The SAMBRE, ant. Sabis. _Germany._ The SIMMER. Joins the Nahe. _Russia._ The SAMARA. Two rivers. 4. _With the ending et._ _Germany._ SEMITA, 8th cent. The SEMPT. In the Gael. _ar_, slow, (whence the Arar, p. 118,) is to be found, as I take it, the root of the Welsh _araf_, mild, gentle. From this Zeuss (_Gramm. Celt._), derives the name of the Arrăbo, now the Raab. This root is liable to mix with another, _arv_, p. 109, of precisely opposite meaning. _Hungary._ ARRABO ant., now the Raab. _India._ ARABIS ant., now the Purally. _Ireland._ The AROB(EG),[50] Co. Cork--here?