Here you will learn that warblers in America will raise cuckoo eggs laid in their nests. In Africa, other warblers will not, while in the Caribbean, where they were imported, they don't know what to do. Jones writes all this to introduce the concept of education versus instinct. Water has power that is only now being understood. Taken on a grand scale, water will ultimately wash away mountains.
Time carries all things.
It deposits all things and raises them up again. Indeed, a good example was shown with cow bones. Cow bones were placed in an area given to rainy erosion. Ten years later, they could not be found, except with great searching. They were mixed with the bones of animals that died millions of years earlier.