[ CHAPTER 1.VI. — THE VOYAGE. ]

[ CHAPTER 1.VII. — LONDON AND CAMBRIDGE. ]

[ CHAPTER 1.VIII. — RELIGION. ]

[ CHAPTER 1.IX. — LIFE AT DOWN. ]

[ CHAPTER 1.X. — THE GROWTH OF THE 'ORIGIN OF SPECIES.' ]

[ Chapter I. "On the kind of intermediateness necessary, and the number ]

[ Chapter II. "The gradual appearance and disappearance of organic ]

[ Chapter III. "Geographical Distribution." Corresponds to Chapters XI. ]

[ Chapter IV. "Affinities and Classification of Organic beings." ]

[ Chapter V. "Unity of Type," Morphology, Embryology. ]