On the Origin of Species by Means of Natural Selection, Or, The Preservation of Favoured Races in the Struggle for Life |
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Page xii
... slight modifications which the latest tertiary forms have apparently undergone . On the nature of the links between past and present species , which geology has , and has not , revealed . On early transitional links . Case of fossil ...
... slight modifications which the latest tertiary forms have apparently undergone . On the nature of the links between past and present species , which geology has , and has not , revealed . On early transitional links . Case of fossil ...
Page 4
... slight variations . I will then pass on to the variability of species in a state of nature ; but I shall , unfortunately , be compelled to treat this subject far too briefly , as it can be treated properly only by giving long catalogues ...
... slight variations . I will then pass on to the variability of species in a state of nature ; but I shall , unfortunately , be compelled to treat this subject far too briefly , as it can be treated properly only by giving long catalogues ...
Page 11
... slight amount of change may , I think , be attributed to the direct action of the conditions of life - as , in some cases , increased size from amount of food , colour from par- ticular kinds of food , and perhaps the thickness of fur ...
... slight amount of change may , I think , be attributed to the direct action of the conditions of life - as , in some cases , increased size from amount of food , colour from par- ticular kinds of food , and perhaps the thickness of fur ...
Page 13
... slight and those of considerable physiological importance , are endless . Dr. Prosper Lucas's treatise , in two large volumes , is the fullest and the best on this subject . No breeder doubts how strong is the tendency to inheritance ...
... slight and those of considerable physiological importance , are endless . Dr. Prosper Lucas's treatise , in two large volumes , is the fullest and the best on this subject . No breeder doubts how strong is the tendency to inheritance ...
Page 15
... slight deviations in their structure , in such case , I grant that we could deduce nothing from domestic varieties in regard to species . But there is not a shadow of evidence in favour of this view : to assert that we could not breed ...
... slight deviations in their structure , in such case , I grant that we could deduce nothing from domestic varieties in regard to species . But there is not a shadow of evidence in favour of this view : to assert that we could not breed ...
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Common terms and phrases
accumulated adapted affinities allied species America amount analogous ancient animals appear Asa Gray become bees believe birds breeds cause cells characters cirripedes climate closely allied colour continuous crossed crustaceans degree difficulty distinct species divergence domestic doubt embryo Europe existing exterminated extinct extremely facts favourable fertility flowers formations forms fossil Gärtner genera genus geological geological period Glacial period gradations greater number groups of species habits Hence hybrids hybrids produced important individuals inhabitants inherited insects instance instincts intercrossing intermediate land larvæ laws less living male mammals manner Marsupials migration modification modified descendants mongrels natural selection naturalists nearly nest occasionally offspring organisation origin of species perfect pigeons plants pollen present principle probably produced progenitor racter ranked reciprocal crosses remarked resemble rudimentary organs seeds Silurian slight South America sterility structure struggle successive supposed tend theory tion variability variations varieties vary whole widely