CHAPTER XIV.

Aqueous causes—Excavating and transporting power of rivers

[198]
CHAPTER XV

Carrying power of river-ice—Glaciers and Icebergs

[219]
CHAPTER XVI.

Phenomena of springs

[232]
CHAPTER XVII

Reproductive effects of rivers—Deltas of lakes and inland seas

[251]
CHAPTER XVIII.

Deltas of the Mississippi, Ganges, and other rivers exposed to tidal action

[263]
CHAPTERS XIX. XX. XXI.

Denuding, transporting, and depositing agency of the waves, tides, andcurrents—Waste of sea-cliffs on the coast of England—Delta of theRhine—Deposition of sediment under the influence of marine currents

[290], [321], [337]
CHAPTER XXII.

Observed effects of igneous causes—Regions of active volcanoes

[344]
CHAPTERS XXIII. XXIV.

History of the volcanic eruptions of the district round Naples—Structure ofVesuvius—Herculaneum and Pompeii

[360], [375]
CHAPTER XXV.

Etna—Its eruptions—Structure and antiquity of the cone

[396]
CHAPTER XXVI.

Volcanoes of Iceland, Mexico, the Canaries, and Grecian Archipelago—Mudvolcanoes

[424]
CHAPTER XXVII.

Earthquakes and the permanent changes attending them

[451]
CHAPTER XXVIII.

Earthquake of 1783 in Calabria

[471]
CHAPTER XXIX.

Elevation and subsidence of dry land, and of the bed of the sea duringearthquakes—Evidence of the same afforded by the Temple of Serapis near Naples

[493]
CHAPTER XXX.

Elevation and subsidence of land in regions free from volcanoes andearthquakes—Rising of land in Sweden

[519]
CHAPTERS XXXI. XXXII.

Causes of earthquakes and volcanoes—Theory of central fluidity of theearth—Chemical theory of volcanoes—Causes of permanent upheaval anddepression of land

[533], [545]

BOOK III. (Chapters XXXIII to L.)

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 ofspecies—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 ofpeculiar species of plants—Their mode of diffusion

[612]
CHAPTER XXXVIII.

Distinct provinces of peculiar species of animals—Distribution and dispersion ofquadrupeds, birds, and reptiles

[629]
CHAPTER XXXIX.

Geographical distribution and migrations of fish—Of testacea—Of zoophytes—Ofinsects—Geographical distribution and diffusion of the human race

[646]
CHAPTER XL.

Theories respecting the original introduction of species—Reciprocal influence ofspecies on each other

[665]
CHAPTERS XLI. XLII.

Extinction of species—How every extension of the range of a species alters the conditionof many others—Effect of changes of climate

[677], [689]
CHAPTER XLIII.

Creation of species—Whether the loss of certain animals and plants is compensatedby 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 aqueousdeposits

[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.]
Plate1. Map showing the Area in Europe which has been coveredby Water since the beginning of the Eocene Period [to face p. 121]
2. Boulders drifted by Ice on the Shores of theSt. 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]