On the Origin of Species by Means of Natural Selection: Or, The Preservation of Favoured Races in the Struggle for LifeJ. Murray, 1860 - 502페이지 This is the 'second edition' of Darwin's Origin of Species. |
도서 본문에서
65개의 결과 중 1 - 5개
viii 페이지
... intermediate varieties at the present day - 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 ...
... intermediate varieties at the present day - 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 ...
20 페이지
... intermediate between their parents ; and if we account for our several domestic races by this process , we must admit the former existence of the most extreme forms , as the Italian greyhound , bloodhound , bull - dog , & c . , in the ...
... intermediate between their parents ; and if we account for our several domestic races by this process , we must admit the former existence of the most extreme forms , as the Italian greyhound , bloodhound , bull - dog , & c . , in the ...
29 페이지
... 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 ...
47 페이지
... 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 ...
50 페이지
... intermediate links , and it is very doubtful whether these links are hybrids ; and there is , as it seems to me , an overwhelming amount of experimental evidence , show- ing that they descend from common parents , and con- sequently ...
... intermediate links , and it is very doubtful whether these links are hybrids ; and there is , as it seems to me , an overwhelming amount of experimental evidence , show- ing that they descend from common parents , and con- sequently ...
기타 출판본 - 모두 보기
자주 나오는 단어 및 구문
accumulated adapted affinities allied species America amount analogous ancient animals appear 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 hybrids hybrids produced important individuals inhabitants inherited insects instance instincts intercrossing intermediate land larvæ less living male mammals manner Marsupials migration modification modified descendants natural selection naturalists nearly nest oceanic islands offspring organisation perfect pigeons plants pollen present probably produced progenitor racters ranked reciprocal crosses remarked resemble rock-pigeon rudimentary organs seeds sexual selection Silurian slight South America sterility structure struggle successive supposed tend theory tion variability variations varieties vary whole widely