Tropical Nature, and Other EssaysMacmillan and Company, 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 73 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 73 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 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