The Earth as Modified by Human Action: A New Edition of Man and NatureScribner's Sons, 1882 - 674 páginas |
Outras edições - Ver todos
The Earth as Modified by Human Action: A Last Revision of "Man and Nature" George Perkins Marsh Visualização completa - 1898 |
The Earth as Modified by Human Action: A Last Revision of "Man and Nature" George Perkins Marsh Visualização completa - 1885 |
Termos e frases comuns
abundant acres action agricultural Alps American ancient animals annual Apennines Ardèche artificial ascribed atmosphere banks basin Becquerel birds canals century channel character climate coast consequently considerable countries course covered cubic yards cultivated deposit depth desert destruction dikes discharge draining dunes earth effects Egypt Elisée Reclus Europe evaporation extent fact feet fertile floods flow forest France geographical geological ground growth Haarlem height Hence human humidity hundred important inches increase influence insects inundations irrigation Italy lake land Lappmarken larvæ latter less Lombardy Maremma maritime pine miles millimetres moisture mountains natural Nile Northern observations Paris period pine plains plants precipitation present probably produced proportion protection quadrupeds quantity rain river rock roots sand season shores snow soil species springs square miles strata stratum streams supply supposed surface temperature timber tion torrents transported trees Val di Chiana valley vegetable wild wind winter woods Zuiderzee
Passagens mais conhecidas
Página 406 - And God said, Let the waters under the heaven be gathered together unto one place, and let the dry land appear: and it was so.
Página 33 - Man has too long forgotten that the earth was given to him for usufruct alone, not for consumption, still less for profligate waste.
Página 43 - There are parts of Asia Minor, of Northern Africa, of Greece, and even of Alpine Europe, where the operation of causes set in action by man has brought the face of the earth to a desolation almost as complete as that of the moon ; and though, within that brief space of time xvhich we call
Página 335 - A shadie grove not farr away they spide, That promist ayde the tempest to withstand ; Whose loftie trees, yclad with sommers pride...
Página 296 - I will give only a single instance, which, though a simple one, has interested me. In Staffordshire, on the estate of a relation where I had ample means of investigation, there was a large and extremely barren heath, which had never been touched by the hand of man; but several hundred acres of exactly the same nature had been enclosed twenty-five years previously and planted with Scotch fir. The change in the native vegetation...
Página 34 - But man is everywhere a disturbing agent. Wherever he plants his foot, the harmonies of nature are turned to discords.
Página 43 - The earth is fast becoming an unfit home for its noblest inhabitant, and another era of equal human crime and human improvidence, and of like duration with that through which traces of that crime and that improvidence extend, would reduce it to such a condition of impoverished productiveness, of shattered surface, of climatic excess, as to threaten the depravation, barbarism and perhaps even extinction of the species.
Página 3 - Vast forests have disappeared from mountain spurs and ridges ; the vegetable earth accumulated beneath the trees by the decay of leaves and fallen trunks, the soil of the alpine pastures which skirted and indented the woods, and the mould of the upland fields, are washed away ; meadows, once fertilized by irrigation, are waste and unproductive, because the cisterns and reservoirs that supplied the ancient canals are broken, or the springs...