The Origin of Species by Means of Natural Selection: Or, the Preservation of Favored Races in the Struggle for Life, Volume 1D. Appleton, 1898 - Evolution |
From inside the book
Results 6-10 of 57
Page 46
... Hence , number is of the highest importance for success . On this principle Marshall formerly remarked , with respect to the sheep of parts of Yorkshire , " as they generally belong to poor people , and are mostly in small lots , they ...
... Hence , number is of the highest importance for success . On this principle Marshall formerly remarked , with respect to the sheep of parts of Yorkshire , " as they generally belong to poor people , and are mostly in small lots , they ...
Page 57
... Hence , in determining whether a form should be ranked as a species or a variety , the opinion of natural- ists having sound judgment and wide experience seems the only guide to follow . We must , however , in many cases , decide by a ...
... Hence , in determining whether a form should be ranked as a species or a variety , the opinion of natural- ists having sound judgment and wide experience seems the only guide to follow . We must , however , in many cases , decide by a ...
Page 65
... Hence I look at individual differences , though of small interest to the systematist , as of the highest im- portance for us , as being the first steps towards such slight varieties as are barely thought worth recording in works on ...
... Hence I look at individual differences , though of small interest to the systematist , as of the highest im- portance for us , as being the first steps towards such slight varieties as are barely thought worth recording in works on ...
Page 67
... Hence it is the most flourishing , or , as they may be called , the dominant species , those which range widely , are the most diffused in their own coun- try , and are the most numerous in individuals , -which oftenest produce well ...
... Hence it is the most flourishing , or , as they may be called , the dominant species , those which range widely , are the most diffused in their own coun- try , and are the most numerous in individuals , -which oftenest produce well ...
Page 69
... hence we might expect that the circumstances would generally be still favourable to variation . On the other hand , if we look at each species as a special act of creation , there is no apparent reason why more varieties should occur in ...
... hence we might expect that the circumstances would generally be still favourable to variation . On the other hand , if we look at each species as a special act of creation , there is no apparent reason why more varieties should occur in ...
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 descendants 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 increase inhabitants inherited insects instance instincts intercrossing intermediate kind lamellæ large number larger genera larvæ less males manner Melipona Mivart modified natural selection naturalists nearly nest occasionally offspring organisation organs origin Origin of Species parent perfect period pigeons pollen pollen-grains present preserved prey principle probably produced progenitor quadrupeds rank rarely Red Grouse relation remarked resemble rock-pigeon seeds sexes sexual selection slight stamens striped structure struggle supposed swimbladder tend tendency tion tree variability variations varieties vary widely wings young