"First Modern library edition, 1936."

71213

Bibliography: p. [v]

CONTENTS:

On the origin of species. Introduction -- 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 -- Recapitulation and conclusion.

The descent of man. The evidence of the descent of man from some lower form -- On the manner of development of man from some lower form -- Comparison of the mental powers of man and the lower animals -- Comparison of the mental powers of man and the lower animals : continued -- On the development of the intellectual and moral faculties during primeval and civilised times -- On the affinities and genealogy of man -- On the races of man -- Principles of sexual selection -- Secondary sexual characters in the lower classes of the animal kingdom -- Secondary sexual characters of insects -- Insects, continued. Order : lepidoptera. (butterflies and moths) -- Secondary sexual characters of fishes, amphibians, and reptiles -- Secondary sexual characters of birds -- Birds : continued -- Secondary sexual characters of mammals -- Secondary sexual characters of mammals : continued -- Secondary sexual characters of man -- Secondary sexual characters of man : continued -- General summary and conclusion.