Tropical nature, and other essaysMacmillan, 1878 - 356 pages |
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Page 1
... of winter , are constantly recurring phenomena which represent to us the estab lished course of nature . At the equator none of these changes occur ; there is a perpetual equinox and B a perpetual summer , and were it not for variations.
... of winter , are constantly recurring phenomena which represent to us the estab lished course of nature . At the equator none of these changes occur ; there is a perpetual equinox and B a perpetual summer , and were it not for variations.
Page 10
... occurs in the plains of Northern India , where the daily maximum of heat is far beyond anything experienced near the equator , yet , owing to the extreme dryness of the atmosphere , the clear nights are very cold , radiation being ...
... occurs in the plains of Northern India , where the daily maximum of heat is far beyond anything experienced near the equator , yet , owing to the extreme dryness of the atmosphere , the clear nights are very cold , radiation being ...
Page 12
... occurs near the equator , it can almost always be traced to the influence of currents of air of unusually low temperature . Thus in July near the Aru islands , the writer experienced a strong south - east wind which almost neutralised ...
... occurs near the equator , it can almost always be traced to the influence of currents of air of unusually low temperature . Thus in July near the Aru islands , the writer experienced a strong south - east wind which almost neutralised ...
Page 14
... occurs with that great heat - reservoir the earth , whose actual temperature at any spot will depend , not alone upon the quantity of heat it receives , but on the balance between its constantly varying waste and supply . We can thus ...
... occurs with that great heat - reservoir the earth , whose actual temperature at any spot will depend , not alone upon the quantity of heat it receives , but on the balance between its constantly varying waste and supply . We can thus ...
Page 16
... occur usually at different times and in different places , the equalising effect is still very important . Evaporation occurs chiefly during the hottest sunshine , when it tends to moderate the extreme heat , while condensation takes ...
... occur usually at different times and in different places , the equalising effect is still very important . Evaporation occurs chiefly during the hottest sunshine , when it tends to moderate the extreme heat , while condensation takes ...
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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