Names among these hills are a commodity so scarce that their paucity presents a serious obstacle to intelligible description. Round Tops and High Peaks are innumerable. We hope, when Professor Guyot completes his cursory survey of heights, made eighteen months ago, he will strive to do as in North Carolina, and supply the deficiency. Nomenclature is a difficult matter, and requires a poet, a poetic man of science, or the imaginative intuitions of a primitive people. The main range of the Catskills finds its southerly corner in Overlook Mountain, not far from Woodstock, and about seven miles (more or less) west of the Hudson. One ridge extends northerly (a little east, parallel with the river) from twelve to fourteen miles, and then, at the North Mountain, making an obtuse angle, turns to the northwest, and passes through Windham into Schoharie County: the other ridge, starting from Overlook, runs in a westerly direction along the southern border of Greene County, and finally in Delaware sinks into broken hill ranges of less elevation. The space intermediate between these two main ridges is at first narrow, but gradually widens as they diverge from the starting point; its interior (northwesterly) slope is drained by the Schoharie (a branch of the Mohawk) and its tributaries, the East, the West, and Batavia Kills. Singular gaps or cloves intersect the range, affording easy communication with the lowlands bordering its base. Each clove has its own stream, and in the main ones on the river front are found the countless and beautiful waterfalls which constitute the chief characteristic of Catskill scenery. The more primitive rocks of the Highlands, the Adirondacs, and the White Mountains do not offer such numerous and picturesque sheets of falling water as the red sandstone of the Catskills. Starting from Overlook Mountain, whence the view is said to be magnificent, and proceeding northward, we first reach the Plattekill Clove, up whose steep and wooded cleft winds a wild road, chiefly used for quarrying purposes, and down whose abrupt declivity the Plattekill leaps from crag to crag in a series of fine falls and cascades. The quantity of water during the summer months, except after considerable rain, is small, but the rock formations are very interesting, reminding the traveller of wild passes in the Tyrol. This is perhaps the grandest of all the Catskill clefts, but human ingenuity has here afforded no aid to the sightseer, and strong heads and agile limbs are needed for the enjoyment of its hidden beauties.