Tropical Nature, and Other EssaysMacmillan and Company, 1878 - 356 pages |
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Page ix
... considerable changes in a limited period . The discussion on the nature and origin of the colours of animals and plants , is intended to show how far and in what way these are dependent on the climate and physical conditions of the ...
... considerable changes in a limited period . The discussion on the nature and origin of the colours of animals and plants , is intended to show how far and in what way these are dependent on the climate and physical conditions of the ...
Page x
... considerable additions to the original essay and have rearranged , and I trust strengthened the argument , which I now hope may attract the attention of all who are interested in the subject . I may be allowed here to remark , that my ...
... considerable additions to the original essay and have rearranged , and I trust strengthened the argument , which I now hope may attract the attention of all who are interested in the subject . I may be allowed here to remark , that my ...
Page 2
... considerable angle towards the source of light and heat . This incli- nation of the axis on which the earth rotates is usually defined by the inclination of the equator to the plane of the orbit , termed the obliquity of the ecliptic ...
... considerable angle towards the source of light and heat . This incli- nation of the axis on which the earth rotates is usually defined by the inclination of the equator to the plane of the orbit , termed the obliquity of the ecliptic ...
Page 9
... considerable quantities in the atmosphere , exhibits a singular and very important relation to solar and terrestrial heat . The rays of the sun pass through it unobstructed to the earth ; but the warmth given off by the heated earth is ...
... considerable quantities in the atmosphere , exhibits a singular and very important relation to solar and terrestrial heat . The rays of the sun pass through it unobstructed to the earth ; but the warmth given off by the heated earth is ...
Page 11
... considerably more than three thousand miles , and the area of the intertropical zone more than one - third the whole area of the globe , it becomes hardly possible for any currents of air to reach the equatorial belt without being ...
... considerably more than three thousand miles , and the area of the intertropical zone more than one - third the whole area of the globe , it becomes hardly possible for any currents of air to reach the equatorial belt without being ...
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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