Note

[The poems which follow appeared, with a few exceptions, either in the
volumes published from time to time by Shelley himself, or in the
"Posthumous Poems" of 1824, or in the "Poetical Works" of 1839, of
which a second and enlarged edition was published by Mrs. Shelley in
the same year. A few made their first appearance in some fugitive
publication--such as Leigh Hunt's "Literary Pocket-Book"--and were
subsequently incorporated in the collective editions. In every case the
editio princeps and (where this is possible) the exact date of
composition are indicated below the title.]