Tropical Nature, and Other EssaysAMS Press, 1878 - 356 pages |
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Page v
... forest glades and tangled bowers , While the life - giving orb's effulgent beams Through all the circling year call forth the flowers . Here graceful palms , here luscious fruits have birth ; The fragrant coffee , life - sustaining rice ...
... forest glades and tangled bowers , While the life - giving orb's effulgent beams Through all the circling year call forth the flowers . Here graceful palms , here luscious fruits have birth ; The fragrant coffee , life - sustaining rice ...
Page xi
... Forest - belt and its Causes - General Features of the Equa- torial Forests - Low - growth Forest - trees - Flowery Trunks and their Probable Cause - Uses of Equatorial Forest - trees -- The Climbing Plants of the Equatorial Forests ...
... Forest - belt and its Causes - General Features of the Equa- torial Forests - Low - growth Forest - trees - Flowery Trunks and their Probable Cause - Uses of Equatorial Forest - trees -- The Climbing Plants of the Equatorial Forests ...
Page 13
... forest it has been unable to acquire the usual tropical warmth . The cause of the striking contrast between the climates of equatorial and temperate lands at times when both are receiving an approximately equal amount of solar heat may ...
... forest it has been unable to acquire the usual tropical warmth . The cause of the striking contrast between the climates of equatorial and temperate lands at times when both are receiving an approximately equal amount of solar heat may ...
Page 16
... forests , and also by the presence of hills and moun- tains , and is therefore greater on land than on the ocean ; while evaporation is much greater on the ocean , both on account of the less amount of cloudy weather and because the air ...
... forests , and also by the presence of hills and moun- tains , and is therefore greater on land than on the ocean ; while evaporation is much greater on the ocean , both on account of the less amount of cloudy weather and because the air ...
Page 18
... forests of the Amazon , and with many other tropical as with a few temperate fruits . Uniformity of the Equatorial ... forest , or with an open and more cultivated country . The open sandy country with scattered trees 18 TROPICAL NATURE ...
... forests of the Amazon , and with many other tropical as with a few temperate fruits . Uniformity of the Equatorial ... forest , or with an open and more cultivated country . The open sandy country with scattered trees 18 TROPICAL NATURE ...
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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 oceanic 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
Popular passages
Page 286 - And assuredly, there is no mark of degradation about any part of its structure. It is, in fact, a fair average human skull, which might have belonged to a philosopher, or might have contained the thoughtless brains of a savage.
Page 134 - I have seen the female sitting quietly on a branch, and two males displaying their charms in front of her. One would shoot up like HUMMING-BIRDS a rocket, then suddenly expanding the snow-white tail like an inverted parachute, slowly descend in front of her, turning round gradually to show off both back and front.
Page 62 - ... from tree to tree, entangling the giants in a great network of coiling cables. Sometimes a tree appears covered with beautiful flowers which do not belong to it, but to one of the lianas that twines through its branches and sends down great rope-like stems to the ground. Climbing ferns and vanilla cling to the trunks, and a thousand epiphytes perch themselves on the branches. Amongst these are large arums that send down long aerial roots, tough and strong, and universally used instead of cordage...
Page 201 - Dr. Wallace, who has had such immense experience in breeding Bombyx cynthia, is convinced that the females evince no choice or preference. He has kept above 300 of these moths living...
Page 289 - ... various forms, and especially to the gibbons ; so that in all probability the special line of variation which led up to man branched off at a still earlier period. And these early forms, being the initiation of a far higher type, and having to develop by natural selection into so...
Page 25 - The approach of the rain-clouds was after a uniform fashion very interesting to observe. First, the cool sea-breeze, which commenced to blow about ten o'clock, and which had increased in force with the increasing power of the sun, would flag and finally die away. The heat and electric tension of the atmosphere would then become almost insupportable. Languor and uneasiness would seize on every one, even the denizens of the forest, betraying it by their motions.
Page 123 - ... 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 of the work of development in certain lines over and over again. In the one, evolution has had a fair chance ; in the other, it has had countless difficulties thrown in its way. The equatorial regions are then, as regards their past and present life history, a more ancient world than that represented by the temperate zones, a world in...
Page 179 - It is a suggestive fact that all the brightly-coloured birds mentioned above build in holes or form covered nests, so that the females do not need that protection during the breeding season which I believe to be one of the chief causes of the dull colour of female birds when their partners are gaily coloured.
Page 172 - Animals," (Contributions to the Theory of Natural Selection, p. 45), that very little need be added here except a few words of general explanation. Protective colours are exceedingly prevalent in nature, comprising those of all the white arctic animals, the sandy-coloured desert forms, and the green birds and insects ' of tropical forests. It also comprises thousands...