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 22
... find in the domestic duck that the bones of the wing weigh less and the bones of the leg more , in proportion to the whole skeleton , than do the same bones in the wild - duck ; and I presume that this change may be safely attributed to ...
... find in the domestic duck that the bones of the wing weigh less and the bones of the leg more , in proportion to the whole skeleton , than do the same bones in the wild - duck ; and I presume that this change may be safely attributed to ...
Page 26
... find that there are hardly any domestic races , either amongst animals or plants , which have not been ranked by competent judges as the descendants of aboriginally distinct species , and by other competent judges as mere varieties . If ...
... find that there are hardly any domestic races , either amongst animals or plants , which have not been ranked by competent judges as the descendants of aboriginally distinct species , and by other competent judges as mere varieties . If ...
Page 27
... find in the most ancient records , more especially on the monuments of Egypt , much diversity in the breeds ; and that some of the breeds closely resemble , perhaps are identical with , those still existing . Even if this latter fact ...
... find in the most ancient records , more especially on the monuments of Egypt , much diversity in the breeds ; and that some of the breeds closely resemble , perhaps are identical with , those still existing . Even if this latter fact ...
Page 29
... find a single case on record of a permanent race having been thus formed . On the Breeds of the Domestic Pigeon . - Believing that it is always best to study some special group , I have , ཊ ོ་ ཀའ ? after deliberation , taken up domestic ...
... find a single case on record of a permanent race having been thus formed . On the Breeds of the Domestic Pigeon . - Believing that it is always best to study some special group , I have , ཊ ོ་ ཀའ ? after deliberation , taken up domestic ...
Page 40
... find distinctly given in an ancient Chinese encyclopædia . Explicit rules are laid down by some of the Roman classical writers . From passages in Genesis , it is clear that the colour of domestic animals was at that early period ...
... find distinctly given in an ancient Chinese encyclopædia . Explicit rules are laid down by some of the Roman classical writers . From passages in Genesis , it is clear that the colour of domestic animals was at that early period ...
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Common terms and phrases
accumulated adapted affinities allied species America analogous ancient animals appear archipelago become bees believe birds breeds cause cells characters cirripedes climate closely allied colour continuous crossed crustaceans degree difficulty distinct species divergence domestic doubt embryo endemic existing exterminated extinct extremely facts favourable fertilised 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 increase individuals inhabitants inherited insects instance instincts intercrossing intermediate larvæ laws less living males mammals manner migration modification modified descendants natural selection naturalists nearly nest occasionally offspring organic organisation origin of species perfect pigeons plants pollen present principle probably produced progenitor ranked reciprocal crosses remarked resemble rock-pigeon rudimentary seeds sexual sexual selection Silurian slight sometimes South America sterility structure struggle successive supposed swimbladder tend theory variability variations varieties vary whole widely