Tropical Nature, and Other EssaysMacmillan and Company, 1878 - 356 pages |
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Page 78
... comparatively abundant in the tropical forests . Most magnificent of all are the Uranias , whose long - tailed green - and - gold powdered wings resemble those of true swallow - tailed butterflies . Many Agaristidæ of the East are ...
... comparatively abundant in the tropical forests . Most magnificent of all are the Uranias , whose long - tailed green - and - gold powdered wings resemble those of true swallow - tailed butterflies . Many Agaristidæ of the East are ...
Page 122
... comparatively simple influence of solar light and heat , but rather in the uniformity and permanence with which these and all other terrestrial conditions have acted ; neither varying prejudicially throughout the year , nor having ...
... comparatively simple influence of solar light and heat , but rather in the uniformity and permanence with which these and all other terrestrial conditions have acted ; neither varying prejudicially throughout the year , nor having ...
Page 123
... comparatively con- tinuous and unchecked development of organic forms ; while in the temperate regions , there have been a series of periodical checks and extinctions of a more or less disastrous nature , necessitating the commencement ...
... comparatively con- tinuous and unchecked development of organic forms ; while in the temperate regions , there have been a series of periodical checks and extinctions of a more or less disastrous nature , necessitating the commencement ...
Page 141
... comparatively simple case of the action of the laws of variation and natural selection , it will be instructive to see if we can picture to ourselves the process by which the changes have been brought about . We must first go back to an ...
... comparatively simple case of the action of the laws of variation and natural selection , it will be instructive to see if we can picture to ourselves the process by which the changes have been brought about . We must first go back to an ...
Page 145
... comparatively barren island ( a mere rock , as it is de- scribed by some authors ) there would be no such constant abundance of food , and therefore no possibility of a large permanent population ; while the climate would not differ ...
... comparatively barren island ( a mere rock , as it is de- scribed by some authors ) there would be no such constant abundance of food , and therefore no possibility of a large permanent population ; while the climate would not differ ...
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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