Popular Science Monthly, 60. köideMcClure, Phillips and Company, 1902 |
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Page 17
... reach the population of the parent species , and those which would in time obtain and keep a numerical superiority . Now , let some alter- ation of physical conditions occur in the district - a long period of drought , a destruction of ...
... reach the population of the parent species , and those which would in time obtain and keep a numerical superiority . Now , let some alter- ation of physical conditions occur in the district - a long period of drought , a destruction of ...
Page 20
... reach the foliage of the more lofty shrubs , and constantly stretching its neck for the purpose , but because any varieties which occurred among its anti - types with a longer neck than usual at once secured a fresh range of pasture ...
... reach the foliage of the more lofty shrubs , and constantly stretching its neck for the purpose , but because any varieties which occurred among its anti - types with a longer neck than usual at once secured a fresh range of pasture ...
Page 23
... reach of the hand by making loud vocal notes . Its flesh was described as of excellent flavor , and for that reason it was captured at night in large numbers , while its eggs were constantly gathered for food . It arrived in October and ...
... reach of the hand by making loud vocal notes . Its flesh was described as of excellent flavor , and for that reason it was captured at night in large numbers , while its eggs were constantly gathered for food . It arrived in October and ...
Page 27
... reach the summit , I could , from my highest position , see that there is no soil on the top , but only a few seaside shrubs and herbaceous plants , growing from crevices of the rock . This was suffi- cient to convince me that the cahow ...
... reach the summit , I could , from my highest position , see that there is no soil on the top , but only a few seaside shrubs and herbaceous plants , growing from crevices of the rock . This was suffi- cient to convince me that the cahow ...
Page 70
... reach full development . As may be guessed , this curious intermediate condi- tion between the zoospore and gamete furnishes a most important clue to the fundamental distinctions that separate the one from the other . These differences ...
... reach full development . As may be guessed , this curious intermediate condi- tion between the zoospore and gamete furnishes a most important clue to the fundamental distinctions that separate the one from the other . These differences ...
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Common terms and phrases
American animals Antarctic appear atmosphere become birds body BUSHY HOUSE cells cement cent century chimæras chromosphere continued corona disease earth eclipse England evidence evolution existence fact filth fishes fronds gametes Germany human Ibans important increase industry insane interest investigation islands Kenyahs known land less Lick Observatory light lines living Lucretius manufacture material ment mental methods migration miles mind nature nearly observations Observatory omen organization origin Origin of Species palm period philosophical photographs physical plants pliocene population Portland cement possible present probably produce Professor Pteranodon pterodactyls question race recent region salmon schools scientific Society soil species spectrum stars stellar evolution sunspots telescope temperature theory tion trunk Ulothrix United University Wilkes Land Yerkes Observatory Yerkes telescope zoospores
Popular passages
Page 280 - And every living substance was destroyed which was upon the face of the ground, both man, and cattle, and the creeping things, and the fowl of the heaven ; and they were destroyed from the earth : and Noah only remained alive, and they that were with him in the ark.
Page 302 - The riddle of the nebulae was solved. The answer, which had come to us in the light itself, read: Not an aggregation of stars, but a luminous gas.
Page 347 - Oh make Thou us, through centuries long, In peace secure, in justice strong ; Around our gift of freedom draw The safeguards of thy righteous law : And, cast in some diviner mould, Let the new cycle shame the old...
Page 166 - Lucretius, nobler than his mood, Who dropped his plummet down the broad Deep universe and said " No God — " Finding no bottom : he denied Divinely the divine, and died Chief poet on the Tiber-side...
Page 227 - They render no useful service, they create no wealth: more often they destroy it. They degrade whatever they touch, and as individuals are perhaps incapable of improvement...
Page 40 - He gave the little wealth he had, To build a house for fools and mad: And showed by one satiric touch, No nation wanted it so much: That kingdom he hath left his debtor, I wish it soon may have a better.
Page 21 - This progression, by minute steps, in various directions, but always checked and balanced by the necessary conditions, subject to which alone existence can be preserved, may, it is believed, be followed out so as to agree with all the phenomena presented by organized beings, their extinction and succession in past ages, and all the extraordinary modifications of form, instinct, and habits which they exhibit.
Page 20 - We see, then, that no inferences as to varieties in a state of nature can be deduced from the observation of those occurring among domestic animals. The two are so much opposed to each other in every circumstance of their existence, that what applies to the one is almost sure not to apply to the other.
Page 20 - The hypothesis of Lamarck- that progressive changes in species have been produced by the attempts of animals to increase the development of their own organs, and thus modify their Structure and habits has been repeatedly and easily refuted by all writers on the subject of varieties and species, . . . but the view here developed renders such an hypothesis quite unnecessary.
Page 476 - ... to secure if possible for the United States of America leadership in the domain of discovery and the utilization of new forces for the benefit of man.