Darwin's ghost: the origin of species updated

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 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.