The origin of the Origin / Michael Ruse
Darwin's analogy between artificial and natural selection in the origin of species / Mark A. Largent
Variation and inheritance / Robert Olby
Darwin's theory of natural selection and its moral purpose / Robert J. Richards
Originating species : Darwin on the species problem / Phillip R. Sloan
Darwin's keystone : the principle of divergence / David Kohn
Darwin's difficulties / A.J. Lustig
Darwin's geology and perspective on the fossil record / Sandra Herbert and David Norman
Geographical distribution in the Origin of species / Peter J. Bowler
Classification in Darwin's Origin / Richard A. Richards
Embryology and morphology / Lynn K. Nyhart
Darwin's botany in the Origin of species / Vassiliki Betty Smocovitis
The rhetoric of the Origin of species / David J. Depew
'Laws impressed on matter by the Creator'? : the Origin and the question of religion / John Hedley Brooke
'Lineal descendants' : the Origin's literary progeny / Gillian Beer
The Origin and political thought : from liberalism to Marxism / Naomi Beck
The Origin and philosophy / Tim Lewens
The Origin of species as a book / Michèle Kohler and Chris Kohler.