BOOK III. (Chapters XXXIII to L.)
Reading edition
observed changes of the organic world now in progress; first, nature and geographical distribution of species, and theories respecting their creation and extinction; secondly, the influence of organic beings in modifying physical geography; thirdly, the laws according to which they are imbedded in volcanic, freshwater, and marine deposits.
CHAPTERS XXXIII. XXXIV. XXXV. XXXVI.
Whether species have a real existence in nature—Theory of transmutation of species—Variability of species—Phenomena of hybrids in animals and plants 566, 578, 591, 600
CHAPTER XXXVII.
Laws which regulate the geographical distribution of species—Distinct provinces of peculiar species of plants—Their mode of diffusion 612
CHAPTER XXXVIII.
Distinct provinces of peculiar species of animals—Distribution and dispersion of quadrupeds, birds, and reptiles 629
CHAPTER XXXIX.
Geographical distribution and migrations of fish—Of testacea—Of zoophytes—Of insects—Geographical distribution and diffusion of the human race 646
CHAPTER XL.
Theories respecting the original introduction of species—Reciprocal influence of species on each other 665
CHAPTERS XLI. XLII.
Extinction of species—How every extension of the range of a species alters the condition of many others—Effect of changes of climate 677, 689
CHAPTER XLIII.
Creation of species—Whether the loss of certain animals and plants is compensated by the introduction of new species 701
CHAPTER XLIV.
Modifications in physical geography caused by organic beings 708
CHAPTER XLV.
Imbedding of organic remains in peat, blown sand, and volcanic ejections 718
CHAPTER XLVI.
Imbedding of the same in alluvial deposits and in caves 730
CHAPTER XLVII.
Imbedding of organic remains in aqueous deposits—Terrestrial plants—Insects, reptiles, birds, quadrupeds 742
CHAPTER XLVIII.
Imbedding of the remains of man and his works 753
CHAPTER XLIX.
Imbedding of aquatic animals and plants, both freshwater and marine, in aqueous deposits 765
CHAPTER L.
Formation of coral reefs 775
LIST OF PLATES.
DIRECTIONS TO THE BINDER.
Frontispiece, View of the Temple of Serapis at Puzzuoli in 1836, to face title page. to face title page.
Plate 1. Map showing the Area in Europe which has been covered by Water since the beginning of the Eocene Period to face p. 121
2. Boulders drifted by Ice on the Shores of the St. Lawrence. 220
3. View looking up the Val del Bove, Etna. 408
4. View of the Val del Bove, Etna, as seen from above 404