Lessons in Physical GeographyAmerican Book Company, 1901 - 430 páginas |
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Términos y frases comunes
Africa animals ANTARCTIC CIRCLE anticline anticyclone Arctic ARCTIC CIRCLE Arctic Ocean Atlantic barometer basin bed rock belt bottom Canyon cent centrosphere clay cliff climate cloud coast Colorado crust cyclones deep deposits depth drift earth earth-crust east elevation equator equatorial erosion extends fall feet flow forms glacial glacier gravel Greenland Gulf heat height inches irregular islands isobars isotherms Lake land latitude lava layers less limestone lower mantle rock mass melting Mississippi moraine mountains nearly North America northern hemisphere ocean plants plateau polar poles portion rain rainfall range rapid Realistic Exercise regions ridges rise river sand sea level sediment sheet shore side slope snow SOUTH EQUATORIAL CURRENT southern species steep strata stream summer surface temperature terminal moraine tion tributaries TROPIC TROPIC OF CANCER TROPIC OF CAPRICORN Uinta Mountains valley vapor vertical volcanic weather winds winter zone
Pasajes populares
Página 67 - Every river appears to consist of a main trunk, fed from a variety of branches, each running in a valley proportioned to its size, and all of them together forming a system of valleys, communicating with one another, and having such a nice adjustment of their declivities, that none of them join the principal valley, either on too high or too low a level...
Página 67 - ... communicating with one another, and having such a nice adjustment of their declivities, that none of them join the principal valley, either on too high or too low a level; a circumstance which would be infinitely improbable, if each of these valleys were not the work of the stream that flows in it.
Página 57 - There rolls the deep where grew the tree. O earth, what changes hast thou seen! There where the long street roars, hath been The stillness of the central sea. The hills are shadows, and they flow From form to form, and nothing stands ; They melt like mist, the solid lands, Like clouds they shape themselves and go.
Página 53 - ... exist if the earth's axis were perpendicular to the plane of its orbit, and the excessive variation which would result if the axis were nearly parallel to that plane.
Página 243 - Year upon year they grind and beat In storms of thunder and storms of sleet — Grind and beat and wrestle and tear, But the rock they beat on is always there ! I am the Rock! THE SEA. I am the Sea. I hold the land As one holds an apple in his hand. Hold it fast with sleepless eyes, Watching the continents sink and rise. Out of my bosom the mountains grow, Back to its depths they crumble slow : The earth is a helpless child to me — I am the Sea! I am the Sea. When I draw back Blossom and verdure...
Página 306 - On either side of this zone and converging toward it are the trade winds, which blow from the northeast in the Northern Hemisphere and from the southeast in the Southern Hemisphere. The...
Página 243 - ... and children play In what were the rocks of yesterday. It is but a moment of sport to me. I am the Sea ! I am the Sea. In my bosom deep Wealth and Wonder and Beauty sleep ; Wealth and Wonder and Beauty rise In changing splendor of sunset skies, And comfort the earth with rains and snows Till waves the harvest and laughs the rose. Flower and forest and child of breath With me have life — without me, death.
Página 296 - It requires about twice as much heat to raise the temperature of a cubic foot of water one degree as it does to raise the temperature of an equal bulk of land.
Página 289 - Thus, heat always flows spontaneously from a hotter to a colder body; gases always seep through an opening spontaneously from a region of high pressure to a region of low pressure; gases and liquids left by themselves always tend to mix, not to unmix.