THE POLAR WORLD.
2. THE TUNDRA OF SIBERIA.
CHAPTER I.
THE ARCTIC LANDS.
The barren Grounds or Tundri.—Abundance of animal Life on the Tundri in Summer.—Their Silence and Desolation in Winter.—Protection afforded to Vegetation by the Snow.—Flower-growth in the highest Latitudes.—Character of Tundra Vegetation.—Southern Boundary-line of the barren Grounds.—Their Extent.—The forest Zone.—Arctic Trees.—Slowness of their Growth.—Monotony of the Northern Forests.—Mosquitoes.—The various Causes which determine the Severity of an Arctic Climate.—Insular and Continental Position.—Currents.—Winds.—Extremes of Cold observed by Sir E. Belcher and Dr. Kane.—How is Man able to support the Rigors of an Arctic Winter?—Proofs of a milder Climate having once reigned in the Arctic Regions.—Its Cause according to Dr. Oswald Heer.—Peculiar Beauties of the Arctic Regions.—Sunset.—Long lunar Nights.—The Aurora.
A glance at a map of the Arctic regions shows us that many of the rivers belonging to the three continents—Europe, Asia, America—discharge their waters into the Polar Ocean or its tributary bays. The territories drained by these streams, some of which (such as the Mackenzie, the Yukon, the Lena, the Yenisei, and the Obi) rank among the giant rivers of the earth, form, along with the islands within or near the Arctic circle, the vast region over which the frost-king reigns supreme.
Man styles himself the lord of the earth, and may with some justice lay claim to the title in more genial lands where, armed with the plough, he compels the soil to yield him a variety of fruits; but in those desolate tracts which are winter-bound during the greater part of the year, he is generally a mere wanderer over its surface—a hunter, a fisherman, or a herdsman—and but few small settlements, separated from each other by immense deserts, give proof of his having made some weak attempts to establish a footing.
It is difficult to determine with precision the limits of the Arctic lands, since many countries situated as low as latitude 60° or even 50°, such as South Greenland, Labrador, Alaska, Kamchatka, or the country about Lake Baikal, have in their climate and productions a decidedly Arctic character, while others of a far more northern position, such as the coast of Norway, enjoy even in winter a remarkably mild temperature. But they are naturally divided into two principal and well-marked zones—that of the forests, and that of the treeless wastes.
