. The earth and its inhabitants ... Geography. 1)6 SCAXDIXAVIA. î^ortli Sea with the Baltic, as clearly shown by tracts now covered with marine fossils. Oysters have been picked up on the south shore of Millar, a sure proof that these waters had formerly at least 17 parts in 1,000 of salt. Bjorko, one of its islands, was till recently strewn with the bones of sea-fowl as well preserved as if they had been just forsaken by the mews after breeding season, ^iiy, more, there still survive small animals of marine origin whose organism has been slowly adapted to the fresh water gradually replacing t
. The earth and its inhabitants ... Geography. 1)6 SCAXDIXAVIA. î^ortli Sea with the Baltic, as clearly shown by tracts now covered with marine fossils. Oysters have been picked up on the south shore of Millar, a sure proof that these waters had formerly at least 17 parts in 1,000 of salt. Bjorko, one of its islands, was till recently strewn with the bones of sea-fowl as well preserved as if they had been just forsaken by the mews after breeding season, ^iiy, more, there still survive small animals of marine origin whose organism has been slowly adapted to the fresh water gradually replacing the sea in the lacustrine basins. Even the Norwegian Lake Mjosen, notwithstanding its distance from the strait of which Wetter and Wener are detached links, still harbours the Mt/sis relicta, Fig. 48.—Lake Malak. Scale 1 : 695, 20 Miles. a living species bearing witness to its former connection with the neighbouring seas, whose temperature was at that time as low as is now the Frozen Ocean. Henceforth severed from the sea by slowly widening isthmuses, the great lacustrine basins dividing Sweden into two distinct regions have continued to rise with the rest of the land. Their surface is now above sea-level, although the beds of most of them are below the surface of the Baltic, "Wener, the largest of the Scandinavian lakes, with an area one-tenth the size of all the rest together,* has a mean elevation of over 141 feet, with an extreme depth of 290 feet. It is thus two or three times larger than Lake Geneva, and about one-fourth the size of Ladoga. Wetter, at twice the altitude of Wener, is also deeper, measuring 413 feet, and 125 below the level of the surrounding seas. Hjelmar, lying nearer * Area in square miles :—Wener, 2,386; Wetter, 733; Malar, Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original
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Keywords: ., bookcentury1800, bookdecade18, booksubjectgeography, bookyear1883
