Tropical Nature, and Other EssaysMacmillan and Company, 1878 - 356 pages |
From inside the book
Results 1-5 of 77
Page 9
... fact , that in many parts of England the degree of humidity as measured by the comparative saturation of the air , is as great as that of Batavia or even greater . A register kept at Clifton during the years 1853-1862 shows a mean ...
... fact , that in many parts of England the degree of humidity as measured by the comparative saturation of the air , is as great as that of Batavia or even greater . A register kept at Clifton during the years 1853-1862 shows a mean ...
Page 10
... fact however is , that the capacity of air for holding vapour in suspension 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 ...
... fact however is , that the capacity of air for holding vapour in suspension 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 ...
Page 21
... fact of the sun descending vertically instead of obliquely below the horizon , the difference is most marked when we compare our midsummer twilight with that of the tropics . Even with us the duration of twilight is very much shorter at ...
... fact of the sun descending vertically instead of obliquely below the horizon , the difference is most marked when we compare our midsummer twilight with that of the tropics . Even with us the duration of twilight is very much shorter at ...
Page 24
... fact be inferred from the extreme steadiness of the barometer , whose daily range at Batavia rarely exceeds one - eighth of an inch , while the extreme range during three years was less than one - third of an inch ! The amount of the ...
... fact be inferred from the extreme steadiness of the barometer , whose daily range at Batavia rarely exceeds one - eighth of an inch , while the extreme range during three years was less than one - third of an inch ! The amount of the ...
Page 28
... facts may be explained by the mode in which the great aerial currents are distributed . trade winds passing over the ocean from north - east to south - west with an oblique tendency towards the equator , become saturated with vapour ...
... facts may be explained by the mode in which the great aerial currents are distributed . trade winds passing over the ocean from north - east to south - west with an oblique tendency towards the equator , become saturated with vapour ...
Other editions - View all
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