The scientist quoted above attempted to prove that:
It took million of years in the formation of earth.
Explanation:
The quote is from a book named Principles of Geology by Charles Lyell that was published in 1830. In this book, he has discussed about the changes occurred gradually in earth and its climate over a long period.
As in his quote, he discussed about the movement of earth and then talks about marine animals embedded in the solid strata ( layer of a rock).
