After being told that there were things that were to be written, but unavailable to the world, Jehovah gave the brother of Jared a vision of the spiritual history of the world. It would have covered much of the same information that we have from Nephi’s vision of the tree of life.
The brother of Jared was also to write them, but the writing was to be sealed up. The experience ends with the admonition to seal up the two stones, to be kept separate from the wider world. They were not physically sealed, for they were available to accompany the plates of Ether. They would have been sacred objects passed through righteous lines until they came to Ether.
This is not the end of the chapter in the 1830 edition.