Tropical Nature, and Other EssaysMacmillan and Company, 1878 - 356 pages |
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Page 19
... proportion of forest - covering to the earth's surface ; and it is to a systematic planting of all the hill tops , elevated ridges , and higher slopes that we can alone look for a radical cure of the evil . This would almost certainly ...
... proportion of forest - covering to the earth's surface ; and it is to a systematic planting of all the hill tops , elevated ridges , and higher slopes that we can alone look for a radical cure of the evil . This would almost certainly ...
Page 32
... proportion , and it was by no means an extreme example of its class . This peculiar form is probably produced by the downward growth of aerial roots , like some New Zealand trees whose growth has been traced , and of whose different ...
... proportion , and it was by no means an extreme example of its class . This peculiar form is probably produced by the downward growth of aerial roots , like some New Zealand trees whose growth has been traced , and of whose different ...
Page 40
... proportion to its height . Some of the smaller species have stems no thicker than a lead pencil , and four or five feet high ; while the great Mauritia of the Amazon has a trunk full two feet in diameter , and more than 100 feet high ...
... proportion to its height . Some of the smaller species have stems no thicker than a lead pencil , and four or five feet high ; while the great Mauritia of the Amazon has a trunk full two feet in diameter , and more than 100 feet high ...
Page 50
... proportion of them have quite inconspicuous flowers and are not worth cultivation . More than thirty years ago the number of known orchids was estimated by Dr. Lindley at 3,000 species , and it is not improbable that they may be now ...
... proportion of them have quite inconspicuous flowers and are not worth cultivation . More than thirty years ago the number of known orchids was estimated by Dr. Lindley at 3,000 species , and it is not improbable that they may be now ...
Page 52
... proportions ; in the comparative length of the joints ; in the thickness and strength of the stem - walls ; in their straightness , smoothness , hardness , and durability . Some are spiny , others are unarmed ; some have simple stems ...
... proportions ; in the comparative length of the joints ; in the thickness and strength of the stem - walls ; in their straightness , smoothness , hardness , and durability . Some are spiny , others are unarmed ; some have simple stems ...
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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