On the Geological Succession of Organic Beings
On the Slow and Successive Appearance of New Species
Let us now see whether the several facts and laws relating to the geological succession of organi...
On Extinction.
We have as yet only spoken incidentally of the disappearance of species and of groups of species....
On the Farms of Life changing almost simultaneously throughout the World.
Scarcely any palæontological discovery is more striking than the fact that the forms of life chan...
On the Affinities of Extinct Species to each other, and to Living Forms.
Let us now look to the mutual affinities of extinct and living species. All fall into a few grand...
On the State of Development of Ancient compared with Living Forms.
We have seen in the fourth chapter that the degree of differentiation and specialisation of the p...
On the Succession of the same Types within the same Areas, during the later Tertiary periods.
Mr. Clift many years ago showed that the fossil mammals from the Australian caves were closely al...
Summary of the preceding and present Chapters.
I have attempted to show that the geological record is extremely imperfect; that only a small por...