Original Text: 
Percy Bysshe Shelley, Posthumous Poems, ed. Mary Shelley (1824). Cf. Posthumous Poems of Shelley. Mary Shelley's Fair Copy Book, Bodleian MS. Shelley Adds. d. 9, Collated with the Holographs and the Printed Texts, ed. Irving Massey (Montreal: McGill-Queens University Press, 1969). PR 5403 M27 ROBA.
1  Unfathomable Sea! whose waves are years,
2    Ocean of Time, whose waters of deep woe
3Are brackish with the salt of human tears!
4    Thou shoreless flood, which in thy ebb and flow
5Claspest the limits of mortality!
6  And sick of prey, yet howling on for more,
7Vomitest thy wrecks on its inhospitable shore;
8    Treacherous in calm, and terrible in storm,
9      Who shall put forth on thee,
10        Unfathomable Sea?
Publication Start Year: 
RPO poem Editors: 
M. T. Wilson
RPO Edition: 
3RP 2.276.