On the Origin of Species by Means of Natural Selection, Or, The Preservation of Favoured Races in the Struggle for Life |
From inside the book
Results 1-3 of 86
Page 100
... plants , and these belonged to eighteen genera and to eight orders , which shows how much these plants differed from each other . So it is with the plants and insects on small and uniform islets ; and so in small ponds of fresh water ...
... plants , and these belonged to eighteen genera and to eight orders , which shows how much these plants differed from each other . So it is with the plants and insects on small and uniform islets ; and so in small ponds of fresh water ...
Page 306
... plants exposed to the waves would float for a less time than those protected from violent movement as in our experiments . Therefore it would perhaps be safer to assume that the seeds of about 10 % plants of a flora , after having been ...
... plants exposed to the waves would float for a less time than those protected from violent movement as in our experiments . Therefore it would perhaps be safer to assume that the seeds of about 10 % plants of a flora , after having been ...
Page 420
... plants in the United States , 100 on rarity of intermediate varie- ties , 151 on Alpine plants , 310 Dr. J. E. , on striped mule , 143 Grebe , 159 Groups , aberrant , 364 Grouse , colours of , 73 red , a doubtful species , 42 Growth ...
... plants in the United States , 100 on rarity of intermediate varie- ties , 151 on Alpine plants , 310 Dr. J. E. , on striped mule , 143 Grebe , 159 Groups , aberrant , 364 Grouse , colours of , 73 red , a doubtful species , 42 Growth ...
Contents
VARIATION UNDER DOMESTICATION | 6 |
VARIATION UNDER NATURE | 38 |
STRUGGLE FOR EXISTENCE | 52 |
Copyright | |
14 other sections not shown
Other editions - View all
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