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Variation under domestication
Variation under nature
Struggle for existence
Natural selection
Laws of variation
Difficulties on theory
Instinct
Hybridism
On the imperfection of the geological record
On the geological succession of organic beings
Geographical distribution
Geographical distribution (continued)
Mutual affinities of organic beings: morphology, embryology, rudimentary organs
Interlude: almost like a whale?
Recapitulation and conclusion.
Variation under nature
Struggle for existence
Natural selection
Laws of variation
Difficulties on theory
Instinct
Hybridism
On the imperfection of the geological record
On the geological succession of organic beings
Geographical distribution
Geographical distribution (continued)
Mutual affinities of organic beings: morphology, embryology, rudimentary organs
Interlude: almost like a whale?
Recapitulation and conclusion.