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THE O R I G I N OF SPECIES
BY MEANS OF NATURAL SELECTION,
THE O R I G I N OF SPECIES
BY MEANS OF NATURAL SELECTION,
BY
CHARLES DARWIN, M A ,
FELLOW OF T H E R O Y A L
AUTHOR OF 'JOURNAL OF RESEARCHES DURING XI. M.
ROUND THE WORLD.'
CHARLES DARWIN, M A ,
FELLOW OF T H E R O Y A L
AUTHOR OF 'JOURNAL OF RESEARCHES DURING XI. M.
ROUND THE WORLD.'
. .
C H A P T E R I.
VARIATION UNDER DOMESTICATION.
Causes of Variability -Effects of Habit -Correlation of Growth -
Inheritance -Character of Domestic Varieties -Difficulty of
distinguishing between Varieties and Species-Origin of Domestic
Varieties from one or more Species -Domestic Pigeons, their
Differences and Origin -Principle of Selection anciently followed,
its Effects -Methodical 2nd Unconscious Selection -Unknown
Origin of our Domestic Productions -Circumstances favourable
to Man’s powerof Selection . . . . . . . . . . . . 7-43
