Complex sentence: The second edition, published in 1800, had only Wordsworth listed as the author, and included a preface to the poems, which was augmented significantly in the next edition, published in 1802.
Split into simpler sentences: The second edition, published in 1800, had only Wordsworth listed as the author, and included a preface to the poems. See via archive.org via archive.org It was augmented significantly in the next edition, published in 1802.