The Origin of Species by Means of Natural Selection: Or, The Preservation of Favoured Races in the Struggle for Life, Volume 1 |
From inside the book
Results 1-5 of 87
Page xvii
... produced , chiefly by intercrossing , but likewise by variation , all our existing species . · In 1826 Professor Grant , in the concluding para- graph in his well - known paper ( ' Edinburgh Philosophi- cal Journal , ' vol . xiv . p ...
... produced , chiefly by intercrossing , but likewise by variation , all our existing species . · In 1826 Professor Grant , in the concluding para- graph in his well - known paper ( ' Edinburgh Philosophi- cal Journal , ' vol . xiv . p ...
Page xix
... produced by the conditions of life are gradual . He argues with much force on general grounds that species are not immutable productions . But I cannot see how the two supposed " impulses " account in a scientific sense for the numerous ...
... produced by the conditions of life are gradual . He argues with much force on general grounds that species are not immutable productions . But I cannot see how the two supposed " impulses " account in a scientific sense for the numerous ...
Page xx
... produced by descent with modification than that they have been separately created : the author first promulgated this opinion in 1831 . 66 Professor Owen , in 1849 ( ' Nature of Limbs , ' p . 86 ) , wrote as follows : - " The archetypal ...
... produced by descent with modification than that they have been separately created : the author first promulgated this opinion in 1831 . 66 Professor Owen , in 1849 ( ' Nature of Limbs , ' p . 86 ) , wrote as follows : - " The archetypal ...
Page xxiv
... produced . I may add , that of the thirty - four authors named in this Historical Sketch , who believe in the modification of species , or at least disbelieve in separate acts of creation , twenty - seven have written on special ...
... produced . I may add , that of the thirty - four authors named in this Historical Sketch , who believe in the modification of species , or at least disbelieve in separate acts of creation , twenty - seven have written on special ...
Page 10
... produce seeds . I cannot here give the details which I have collected and elsewhere published on this curious subject ; but to show how singular the laws are which determine the reproduction of animals under confinement 10 [ СНАР . І ...
... produce seeds . I cannot here give the details which I have collected and elsewhere published on this curious subject ; but to show how singular the laws are which determine the reproduction of animals under confinement 10 [ СНАР . І ...
Other editions - View all
Common terms and phrases
adapted advantage allied analogous animals and plants appear Asa Gray beak become bees believe birds breeds caudicle cause cells characters climate closely colour common crossed cuckoo degree developed difficulty distinct species disuse divergence domestic animals domestic races doubt effects eggs existence extinct extremely facts favourable females flowers forms Fritz Müller genera genus giraffe gradations greater number groups habits Hence hermaphrodites hive-bee important improved increase in number individual differences inhabitants inherited insects instance instincts intercrossing intermediate kind lamellæ large number larger genera larvæ less likewise males manner Melipona Mivart natural selection naturalists nearly nest occasionally offspring organisation organs origin Origin of Species perfect period pigeons pollen pollen-grains present preserved principle probably produced progenitor quadrupeds rank Red Grouse relation remarked resemble rock-pigeon seeds sexes sexual sexual selection slight stamens structure struggle supposed swimbladder tend tendency tion transitional tree variability variations varieties vary widely wings young