Tropical Nature, and Other EssaysMacmillan and Company, 1878 - 356 pages |
From inside the book
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Page 19
... south of the equator , is a striking example of the need of vegetation to react on the rainfall . We have here no apparent cause but the sandy soil and bare hills , which when heated by the equatorial sun produce ascending currents of ...
... south of the equator , is a striking example of the need of vegetation to react on the rainfall . We have here no apparent cause but the sandy soil and bare hills , which when heated by the equatorial sun produce ascending currents of ...
Page 20
... south - temperate countries , on the other hand , the rains are periodical and often of excessive violence for a short period ; and when the forests are cleared away the torrents of rain soon strip off the vegetable soil , and thus ...
... south - temperate countries , on the other hand , the rains are periodical and often of excessive violence for a short period ; and when the forests are cleared away the torrents of rain soon strip off the vegetable soil , and thus ...
Page 23
... south of the equator . Towards the south the Southern Cross , the Magellanic clouds , and the jet - black " coal sacks " are the most conspicuous objects invisible in our northern lati- tudes . The same cause that brings the sun ...
... south of the equator . Towards the south the Southern Cross , the Magellanic clouds , and the jet - black " coal sacks " are the most conspicuous objects invisible in our northern lati- tudes . The same cause that brings the sun ...
Page 28
... south , we meet first with woody and then open country , soon changing into arid plains or even deserts which form an almost con- tinuous band in the vicinity of the two tropics . On the line of the tropic of Cancer we have , in America ...
... south , we meet first with woody and then open country , soon changing into arid plains or even deserts which form an almost con- tinuous band in the vicinity of the two tropics . On the line of the tropic of Cancer we have , in America ...
Page 29
... south as dry , cool air , and descends to the earth in the vicinity of the tropics . Here it sucks up whatever moisture it meets with and thus tends to keep this zone in an arid condition . The trades themselves are believed to be ...
... south as dry , cool air , and descends to the earth in the vicinity of the tropics . Here it sucks up whatever moisture it meets with and thus tends to keep this zone in an arid condition . The trades themselves are believed to be ...
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Common terms and phrases
abundant adapted adorned Africa allied Amazon animals ants Asia attract bamboo Batavia beautiful become birds blue brilliant butterflies carnivora causes changes character characteristic climate colour Colours of Animals comparatively conspicuous continent curious Danaidæ Darwin distinct Eocene equator equatorial zone existence extensive fact families fauna favourable feet female ferns fertilization flowers foliage forests fruits genera genus greater green groups habits heat humming-birds hyænas immense inhabit insects Juan Fernandez land larger larvæ leaves lemurs less light Madagascar Malay Archipelago male mammalia marsupials Miocene monkeys natural selection naturalists North northern observed occur ocean ornaments Palearctic parrots peculiar perhaps phenomena plants plumage probably produced proportion protection rays region remarkable resemble sexual selection showy slender sometimes South America species spots structure sun-birds surface tail temperate zones temperature theory tints tion trees tropical trunks Ungulata variation varied variety vegetation whole wings yellow