This vast prairie extends northward to and beyond the Great Lakes, and it is recorded that in the early history of the proposed legislation for the "Northwest Territory," Congress gravely selected as the names of the States which were to be created out of it such ponderous conglomerates as "Metropotamia," "Assenispia," "Pelisipia" and "Polypotamia," titles which happily were long ago permitted to pass into oblivion. Northward, in Ohio, the region stretches to Lake Erie, the most southern and the smallest of the group of Great Lakes above Niagara. It is regarded as the least attractive lake, having neither romances nor much scenery. Yet, from its favorable position, it carries an enormous commerce. It is elliptical in form, about two hundred and forty miles long and sixty miles broad, the surface being five hundred and sixty-five feet above the ocean level. It is a very shallow lake, the depth rarely exceeding one hundred and twenty feet, excepting at the lower end, while the other lakes are much deeper, and in describing this difference of level it is said that the surplus waters poured from the vast _basins_ of Superior, Michigan and Huron, flow across the _plate_ of Erie into the deep _bowl_ of Ontario. This shallowness causes it to be easily disturbed, so that it is the most dangerous of these fresh-water seas, and it has few harbors, and those very poor, especially upon the southern shore. The bottom of the lake is a light, clayey sediment, rapidly accumulated from the wearing away of the shores, largely composed of clay strata. The loosely-aggregated products of these disintegrated strata are frequently seen along its coast, forming cliffs extending back into elevated plateaus, through which the rivers cut deep channels. Their mouths are clogged by sand-bars, and dredging and breakwaters have made the harbors on the southern shore, around which have grown the chief towns--Dunkirk, Erie, Ashtabula, Cleveland, Sandusky and Toledo. The name of Lake Erie comes from the Indian "tribe of the Cat," whom the French called the "Chats," because their early explorers, penetrating to the shores of the lake, found them abounding in wild cats, and thus they gave the same name to the cats and the savages. In their own parlance, these Indians were the "Eries," and in the seventeenth century they numbered about two thousand warriors. In 1656 the Iroquois attacked and almost annihilated them.