The worn remnants of such rocks are now found in the southern Appalachian range. In fact, the hills and mountains of that region at the present time are supposed to be a small remnant of the ancient highlands. Thus, on consideration, it appears that the sands caused by the action of glaciers were, on the disappearance of ice-sheets, blown by the strong north-west winds toward the Florida peninsula as fast as the receding waters of the ocean which flowed the lowlands on the breaking up of the ice age would permit; and in this way the sand was spread over the lowland region, which was largely composed of coral sea shells and other marine matter. And it seems that the sand must have been blown over large areas in Florida soon after the ending of the frigid period, because the sand, in order to be moved by the winds, must have spread over a country nearly destitute of vegetation; and such would be the condition of that region during times which succeeded the ice period and the subsequent brief flowage of the lowlands on the ending of the frigid age, which would not be the case if such sands resulted entirely from water erosion and weathering, because with such a state of things the country would be covered with forests and grasses, which would prevent the sand from being moved by the winds to any great extent. This goes to show that the region of the Gulf States was so much affected by the cold of the glacial period, together with the submergence of the lowlands at its close, its flora and also its animals were exterminated; for how else can we account for the abundant fossil remains of animals now found buried in the Florida sands? It appears also that, when Florida was being covered with drifting sands, many of the lake basins now formed did not exist, as the wind-blown sand could not have crossed a continuous chain of lakes like the St. John’s River; and it is an easy matter to-day to trace the beds of the ancient lakes that prevented the sands from drifting over certain lands now nearly destitute of it. And it is probable that the sea flowed the lowest lands during the period when the winds were drifting the greater portion of the sands over the peninsula. Therefore, regions which embrace the Everglades and portions of the Indian River territory are quite free from heavy sand deposits, and so also are the extensive flat woods of the peninsula.