Tropical Nature, and Other EssaysMacmillan and Company, 1878 - 356 pages |
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Page xii
... THE ORIGIN OF THE COLOUR - SENSE .-- Supposed Increase of Colour - perception within the Historical Period - Concluding Remarks on the Colour - sense pages 221-248 VII . BY - PATHS IN THE DOMAIN OF BIOLOGY xii CONTENTS .
... THE ORIGIN OF THE COLOUR - SENSE .-- Supposed Increase of Colour - perception within the Historical Period - Concluding Remarks on the Colour - sense pages 221-248 VII . BY - PATHS IN THE DOMAIN OF BIOLOGY xii CONTENTS .
Page 7
... increased altitude must undoubtedly exert . There is another important difference between the temperate and tropical ... increase in the temperature of the air . These very different effects , produced by the same amount of sun - heat ...
... increased altitude must undoubtedly exert . There is another important difference between the temperate and tropical ... increase in the temperature of the air . These very different effects , produced by the same amount of sun - heat ...
Page 10
... increases more rapidly than temperature increases , so that a fall of ten degrees at 50 ° Fahr . will lead to the condensation of about 1 grains of vapour , while a similar fall at 90 ° Fahr . will set free 6 grains . We can thus ...
... increases more rapidly than temperature increases , so that a fall of ten degrees at 50 ° Fahr . will lead to the condensation of about 1 grains of vapour , while a similar fall at 90 ° Fahr . will set free 6 grains . We can thus ...
Page 11
... increasing rapidity of the earth's rotational velocity , so that they reach the equator as easterly winds , and thus pass obliquely over a great extent of the heated surface of the globe . The causes that produce the westerly monsoons ...
... increasing rapidity of the earth's rotational velocity , so that they reach the equator as easterly winds , and thus pass obliquely over a great extent of the heated surface of the globe . The causes that produce the westerly monsoons ...
Page 13
... 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 Peruvian Andes during the winter of the southern ...
... 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 Peruvian Andes during the winter of the southern ...
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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