. The earth and its inhabitants ... Geography. THE EEGION OF LAKES. 521 the so-called " year of the deluge," the level of the lake has been considerably raised, islands have disappeared, inlets have been formed, forests destroyed, and the hiehfoi, or neighbouring- meadows, converted into quagmires. These changes are doubtless due to the extensive drainage operations that have been executed in the surrounding districts, where 1,200 miles of drains now convey more water to Fig. 170.—Lakes and Makshes between the Volkhov and Dvina Basins. Scale 1 : 350,000. çe^QQ- 96M0- L of 2P/40 L
. The earth and its inhabitants ... Geography. THE EEGION OF LAKES. 521 the so-called " year of the deluge," the level of the lake has been considerably raised, islands have disappeared, inlets have been formed, forests destroyed, and the hiehfoi, or neighbouring- meadows, converted into quagmires. These changes are doubtless due to the extensive drainage operations that have been executed in the surrounding districts, where 1,200 miles of drains now convey more water to Fig. 170.—Lakes and Makshes between the Volkhov and Dvina Basins. Scale 1 : 350,000. çe^QQ- 96M0- L of 2P/40 ^ 5 Miles. the lake than can be carried off by the Narova. Rapid encroachments have been made on the north side, where a range of shifting dunes, 24 to 30 feet high, is being constantly displaced northwards, leaving its site a prey to the advancing floods. As the lake has a mean elevation of 95 feet above the sea, its outlet, the Narova, descends somewhat precipitoush^ through a series of rapids to the Gulf of Finland. Above Narva it forms two branches round the island of Kranholm, 1G7. 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 Reclus, Elisée, 1830-1905; Ravenstein, Ernest George, 1834-1913; Keane, A. H. (Augustus Henry), 1833-1912. New York, D. Appleton and company
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Keywords: ., bookcentury1800, bookdecade18, booksubjectgeography, bookyear1883
