...lakes, which are numerous in this district, and form one of the peculiar features of Northern Siberia. These flat valleys are occasionally filled with water,...the course of a single year, sometimes in several. The rich alluvial soil thus exposed, soon becomes covered with a luxuriant growth of the finest grass,...

...lakes, which are numerous in this district, and form one of the peculiar features of Northern Siberia. These flat valleys are occasionally filled with water...the overflowing of the rivers in spring, when they are converted into lakes of various sizes, all abounding in fish. The intense frosts of winter cause...

...world that possesses seals; and, when agitated, in the way already mentioned, by invisible causes, it throws up to its surface quantities of small fish,...when they form lakes of various sizes, all very full offish. The intense frosts of winter cause large clefts in the ground, by which the water drains off,...

...Another curious phenomenon peculiar to Northern Siberia, are the dried-up lakes. They are flat valleys, occasionally filled with water by the overflowing...large clefts in the ground, by which the water drains oft', sometimes in a single year, sometimes in several. Sometimes in the depth of winter the water...

...never seen at any other time. In illustration of the mysterious agencies of nature, which pro. duce the same ends by contrary means, I subjoin two passages...water, by the overflowing of the rivers in spring, when ihey form lakes of various sizes, all very full of fish. The intense frosts of winter cause large clefts...