Tropical Nature, and Other EssaysMacmillan and Company, 1878 - 356 pages |
From inside the book
Page 11
... equatorial belt without being previously warmed by contact with the earth or ocean , or by mixture with the heated surface - air which is found in all intertropical and sub - tropical lands . This warming of the air is rendered . more ...
... equatorial belt without being previously warmed by contact with the earth or ocean , or by mixture with the heated surface - air which is found in all intertropical and sub - tropical lands . This warming of the air is rendered . more ...
Page 12
... equatorial zone , on the contrary , the heat accumulates , on account of the absence of any medium of sufficiently low temperature to carry it off rapidly , and it thus soon reaches a point high enough to produce those scorching effects ...
... equatorial zone , on the contrary , the heat accumulates , on account of the absence of any medium of sufficiently low temperature to carry it off rapidly , and it thus soon reaches a point high enough to produce those scorching effects ...
Page 13
... equatorial temperature . But owing to the increased velocity of the earth's surface at the equator a south wind there must have been a south - west wind at its origin , and this would bring it directly from the high chain of the ...
... equatorial temperature . But owing to the increased velocity of the earth's surface at the equator a south wind there must have been a south - west wind at its origin , and this would bring it directly from the high chain of the ...
Page 14
... equatorial , as compared with the variable temperatures of the extra - tropical zones , is the large amount of heat liberated during the condensation of the aqueous vapour of the atmosphere in the form of rain and dew . Owing to the ...
... equatorial , as compared with the variable temperatures of the extra - tropical zones , is the large amount of heat liberated during the condensation of the aqueous vapour of the atmosphere in the form of rain and dew . Owing to the ...
Page 17
... Equatorial Climate . - The various causes now enumerated are sufficient to enable us to understand how the great characteristic features of the climate of the equatorial zone are brought about ; how it is that so high a temperature is ...
... Equatorial Climate . - The various causes now enumerated are sufficient to enable us to understand how the great characteristic features of the climate of the equatorial zone are brought about ; how it is that so high a temperature is ...
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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