1001a (return) [ The modern philosophers of Sweden seem agreed that the waters of the Baltic gradually sink in a regular proportion, which they have ventured to estimate at half an inch every year. Twenty centuries ago the flat country of Scandinavia must have been covered by the sea; while the high lands rose above the waters, as so many islands of various forms and dimensions. Such, indeed, is the notion given us by Mela, Pliny, and Tacitus, of the vast countries round the Baltic. See in the Bibliotheque Raisonnee, tom. xl. and xlv. a large abstract of Dalin’s History of Sweden, composed in the Swedish language. * Note: Modern geologists have rejected this theory of the depression of the Baltic, as inconsistent with recent observation. The considerable changes which have taken place on its shores, Mr. Lyell, from actual observation now decidedly attributes to the regular and uniform elevation of the land.—Lyell’s Geology, b. ii. c. 17—M.] Some ingenious writers 2 have suspected that Europe was much colder formerly than it is at present; and the most ancient descriptions of the climate of Germany tend exceedingly to confirm their theory. The general complaints of intense frost and eternal winter are perhaps little to be regarded, since we have no method of reducing to the accurate standard of the thermometer, the feelings, or the expressions, of an orator born in the happier regions of Greece or Asia. But I shall select two remarkable circumstances of a less equivocal nature. 1. The great rivers which covered the Roman provinces, the Rhine and the Danube, were frequently frozen over, and capable of supporting the most enormous weights. The barbarians, who often chose that severe season for their inroads, transported, without apprehension or danger, their numerous armies, their cavalry, and their heavy wagons, over a vast and solid bridge of ice. 3 Modern ages have not presented an instance of a like phenomenon. 2. The reindeer, that useful animal, from whom the savage of the North derives the best comforts of his dreary life, is of a constitution that supports, and even requires, the most intense cold. He is found on the rock of Spitzberg, within ten degrees of the Pole; he seems to delight in the snows of Lapland and Siberia: but at present he cannot subsist, much less multiply, in any country to the south of the Baltic. 4 In the time of Cæsar the reindeer, as well as the elk and the wild bull, was a native of the Hercynian forest, which then overshadowed a great part of Germany and Poland. 5 The modern improvements sufficiently explain the causes of the diminution of the cold. These immense woods have been gradually cleared, which intercepted from the