Tropical Nature, and Other EssaysMacmillan and Company, 1878 - 356 pages |
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Page ix
... direct connection with the leading subject . The family of humming - birds is taken as an illustration of the luxuriant development of allied forms in the tropics , and as showing the special mode in which natural selection has acted to ...
... direct connection with the leading subject . The family of humming - birds is taken as an illustration of the luxuriant development of allied forms in the tropics , and as showing the special mode in which natural selection has acted to ...
Page xii
... Direct Action of Light on the Colours of Flowers and Fruits - Concluding Remarks on the Importance of Colour in the Organic World — The Origin OF THE COLOUR - SENSE . - Supposed Increase of Colour - perception within the Historical ...
... Direct Action of Light on the Colours of Flowers and Fruits - Concluding Remarks on the Importance of Colour in the Organic World — The Origin OF THE COLOUR - SENSE . - Supposed Increase of Colour - perception within the Historical ...
Page 7
... direct heating effect of the sun's rays independently of altitude . In England the noonday sun in the month of June rarely incon- veniences us or produces any burning of the skin ; while in the tropics , at almost any hour of the day ...
... direct heating effect of the sun's rays independently of altitude . In England the noonday sun in the month of June rarely incon- veniences us or produces any burning of the skin ; while in the tropics , at almost any hour of the day ...
Page 11
... the heated surface of the globe . The causes that produce the westerly monsoons act in a similar manner , so that on the equator direct north or south winds , except as local land and sea breezes INFLUENCE OF WINDS . 11.
... the heated surface of the globe . The causes that produce the westerly monsoons act in a similar manner , so that on the equator direct north or south winds , except as local land and sea breezes INFLUENCE OF WINDS . 11.
Page 13
... direct from the southern ocean during its winter without acquiring heat by passing over land , was of an unusually low temperature . Again , Mr. Bates informs us that in the Upper Amazon in the month of May there is a regularly ...
... direct from the southern ocean during its winter without acquiring heat by passing over land , was of an unusually low temperature . Again , Mr. Bates informs us that in the Upper Amazon in the month of May there is a regularly ...
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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