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 305
seeds , without the capsule or fruit ; and as all of these sank in a few days , they could not be floated across ... seeds afterwards germinated ; the ripe seeds of Helosciadium sank in two days , when dried they floated for above 90 ...
seeds , without the capsule or fruit ; and as all of these sank in a few days , they could not be floated across ... seeds afterwards germinated ; the ripe seeds of Helosciadium sank in two days , when dried they floated for above 90 ...
Page 307
... seeds passing through the intestines of a bird ; but hard seeds of fruit will pass uninjured through even the digestive organs of a turkey . In the course of two months I picked up in my garden 12 kinds of seeds , out of the excrement ...
... seeds passing through the intestines of a bird ; but hard seeds of fruit will pass uninjured through even the digestive organs of a turkey . In the course of two months I picked up in my garden 12 kinds of seeds , out of the excrement ...
Page 328
... seeds : I have tried several little experiments , but will here give only the most striking case : I took in February three tablespoonfuls of mud from three different points , beneath water , on the edge of a little pond ; this mud when ...
... seeds : I have tried several little experiments , but will here give only the most striking case : I took in February three tablespoonfuls of mud from three different points , beneath water , on the edge of a little pond ; this mud when ...
Contents
VARIATION UNDER DOMESTICATION | 6 |
VARIATION UNDER NATURE | 38 |
STRUGGLE FOR EXISTENCE | 52 |
Copyright | |
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Common terms and phrases
accumulated adapted affinities allied species amount analogous ancient animals appear archipelago become bees believe birds breeds cause cells characters cirripedes climate closely allied colour common parent continuous crossed crustaceans degree difficulty distant distinct species divergence domestic doubt eggs embryo endemic Europe existing exterminated extinct extremely facts favourable fertility flower formations forms fossil Gärtner genera genus geological geological period Glacial period gradations greater number groups of species habits Hence hermaphrodites hybrids hybrids produced important increase in number individuals inhabitants inherited insects instance instincts intercrossing land larvæ less living male mammals manner migration modification modified descendants natural selection naturalists nearly nest occasionally oceanic islands offspring perfect pigeons pistil plants pollen present probably produced progenitor ranked reciprocal crosses remarked resemblance seeds sexual selection Silurian slight South America sterility structure struggle successive suppose swimbladder theory tion trees variability variations vary whole widely