On the Origin of Species by Means of Natural Selection: Or the Preservation of Favored Races in the Struggle for Life1859 |
From inside the book
Results 1-5 of 65
Page viii
... intermediate varieties at the present - On the nature of extinct intermediate varieties ; on their number On the vast lapse of time , as inferred from the rate of deposi- tion and of denudation - On the poorness of our palæontological ...
... intermediate varieties at the present - On the nature of extinct intermediate varieties ; on their number On the vast lapse of time , as inferred from the rate of deposi- tion and of denudation - On the poorness of our palæontological ...
Page 19
... by the crossing of a few aboriginal species ; but by crossing we can get only forms in some degree intermediate between their parents ; and if we ༣ process , account for our several domestic races by this СНАР . І. 19 UNDER DOMESTICATION .
... by the crossing of a few aboriginal species ; but by crossing we can get only forms in some degree intermediate between their parents ; and if we ༣ process , account for our several domestic races by this СНАР . І. 19 UNDER DOMESTICATION .
Page 20
... intermediate between two extremely different races or specțies , I can hardly believe . Sir J. Sebright expressly experimentised for this object , and failed . The offspring from the first cross between two pure breeds is tolerably and ...
... intermediate between two extremely different races or specțies , I can hardly believe . Sir J. Sebright expressly experimentised for this object , and failed . The offspring from the first cross between two pure breeds is tolerably and ...
Page 29
... intermediate links in the long lines of descent , yet admit that many of our domestic races have descended from the same parents— may they not learn a lesson of caution , when they de- ride the idea of species in a state of nature being ...
... intermediate links in the long lines of descent , yet admit that many of our domestic races have descended from the same parents— may they not learn a lesson of caution , when they de- ride the idea of species in a state of nature being ...
Page 47
... intermediate gradations , that naturalists do not like to rank them as distinct species , are in several re- spects the most important for us . We have every reason to believe that many of these doubtful and closely - allied forms have ...
... intermediate gradations , that naturalists do not like to rank them as distinct species , are in several re- spects the most important for us . We have every reason to believe that many of these doubtful and closely - allied forms have ...
Other editions - View all
Common terms and phrases
adapted affinities allied species America amount analogous ancient animals become bees believe birds breeds cause cells characters cirripedes climate closely allied colour common parent continuous crossed crustaceans degree difficulty distinct species divergence domestic doubt embryo Europe existing exterminated extinct extremely facts favourable Fcap fertility flowers formations forms fossil Gärtner genera genus geological geological period Glacial period gradations greater number groups of species habits Hence hermaphrodites History hybrids hybrids produced important individuals inhabitants inherited insects instance instincts intercrossing intermediate land larvæ less living male mammals manner migration modification modified descendants natural selection naturalists nearly nest offspring perfect pigeons plants pollen Post 8vo present principle probably produced progenitor racters ranked reciprocal crosses remarked resemble Second Edition seeds sexual selection Silurian slight South America sterility structure struggle successive suppose theory Third Edition tion variability variation varieties vary Vols whole widely Woodcuts