Tropical Nature, and Other EssaysMacmillan and Company, 1878 - 356 pages |
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Page ix
... regions . While discussing the general laws and phenomena of colour in the organic world , and its special develop- ments among certain groups of animals , I have been led . to a theory of the diverse colours of the sexes and of the ...
... regions . While discussing the general laws and phenomena of colour in the organic world , and its special develop- ments among certain groups of animals , I have been led . to a theory of the diverse colours of the sexes and of the ...
Page xiii
... Regions - The Palæ- arctic Region - The Ethiopian Region - The Oriental Region - Past changes of the Great Eastern Continent - Regions of the New World - Past His- tory of the American Continents - The Australian Region - Summary and ...
... Regions - The Palæ- arctic Region - The Ethiopian Region - The Oriental Region - Past changes of the Great Eastern Continent - Regions of the New World - Past His- tory of the American Continents - The Australian Region - Summary and ...
Page 2
... regions of uniform , of variable , and of extreme physical conditions respectively . They are pri- marily determined by the circumstance of the earth's axis not being perpendicular to the plane in which it moves round the sun ; whence ...
... regions of uniform , of variable , and of extreme physical conditions respectively . They are pri- marily determined by the circumstance of the earth's axis not being perpendicular to the plane in which it moves round the sun ; whence ...
Page 7
... regions which cause the winds that reach the equatorial zone to be always warm , -and the latent heat given out during the formation of rain and dew . We will briefly consider the manner in which each of these causes contributes to the ...
... regions which cause the winds that reach the equatorial zone to be always warm , -and the latent heat given out during the formation of rain and dew . We will briefly consider the manner in which each of these causes contributes to the ...
Page 12
... regions as easterly winds , or from the upper parts of the atmosphere as westerly winds ; and this constant supply of cool air , combined with quick radiation through a dryer atmosphere , carries off the solar heat so rapidly that an ...
... regions as easterly winds , or from the upper parts of the atmosphere as westerly winds ; and this constant supply of cool air , combined with quick radiation through a dryer atmosphere , carries off the solar heat so rapidly that an ...
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Common terms and phrases
abundant adapted adorned Africa allied Amazon animals ants attract bamboo Batavia beautiful become beetles birds blue Borneo brilliant butterflies carnivora causes change of colour character characteristic climate Colours of Animals conspicuous continent curious Danaidæ Darwin distinct elegant equatorial zone existence extensive fact families favourable feet female ferns fertilization flowers foliage forest-trees fruits genera genus greater green groups habits heat humming-birds hyænas immense inhabit insects Juan Fernandez kinds land larger larvæ leaves lemurs less light Madagascar Malay Archipelago male mammalia Miocene monkeys natural selection naturalists nests North observed occur organic ornaments Palearctic palms 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 toucans trees trunks uneatable variation varied variety various vegetation whole wings yellow