Popular Science Monthly, 60. köideMcClure, Phillips and Company, 1902 |
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Page 16
... physically unchanged , the numbers of its animal population cannot materially increase . If one species does so , some others requiring the same kind of food must diminish in proportion . The numbers that die annually must be immense ...
... physically unchanged , the numbers of its animal population cannot materially increase . If one species does so , some others requiring the same kind of food must diminish in proportion . The numbers that die annually must be immense ...
Page 17
... physical conditions occur in the district - a long period of drought , a destruction of vegetation by locusts , the irruption of some new carnivorous animal seeking ' pastures new ' - any change in fact tending to render existence more ...
... physical conditions occur in the district - a long period of drought , a destruction of vegetation by locusts , the irruption of some new carnivorous animal seeking ' pastures new ' - any change in fact tending to render existence more ...
Page 18
... physical conditions again alone survive . But this new , improved , and populous race might itself , in course of time , give rise to new varieties , exhibiting several diverging modifications of form , any of which , tend- ing to ...
... physical conditions again alone survive . But this new , improved , and populous race might itself , in course of time , give rise to new varieties , exhibiting several diverging modifications of form , any of which , tend- ing to ...
Page 31
... physical strength or worldly prosperity affords any certain immunity -a disease , which , prone to feed upon excitement , finally transforms the noblest faculties of our race into a wreck so appalling that in its contemplation the human ...
... physical strength or worldly prosperity affords any certain immunity -a disease , which , prone to feed upon excitement , finally transforms the noblest faculties of our race into a wreck so appalling that in its contemplation the human ...
Page 32
... physical basis of sanity in the best medical minds , recurs again in the darkness and decadence of the middle ages but magnified and rendered terrible by the ignorance and gross super- stitions of the time . In ancient Egypt , demons ...
... physical basis of sanity in the best medical minds , recurs again in the darkness and decadence of the middle ages but magnified and rendered terrible by the ignorance and gross super- stitions of the time . In ancient Egypt , demons ...
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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.