of nine years have been mislaid? Failing this hypothesis, we can only assume that Shelley's 'formidable list' was not nearly so formidable as it might have been". Although Mary Shelley's editing of Prometheus Unbound has its detractors, her version of the text was relied on for many of the later editions. G. G. Foster, in 1845, published the first American edition of Shelley's poems, which relied on both Mary Shelley's edits and her notes. Foster was so attached to Mary Shelley's edition that, when Edgar Allan Poe suggested changing some of the text, Foster responded "But I have not felt at liberty to change the text sanctioned by Mrs. Shelley – whom I regard as the evangelist of her transifigured lord". However, he, like Rossetti, tended to differ from Mary Shelley when it came to punctuation and capitalisation. Rossetti went beyond Foster, and, prefaced his edition with: "I have considered it my clear duty and prerogative to set absolutely wrong grammar right... and to set absolutely wrong rhyming right... and to set absolutely wrong metre right..." but made sure to point out that his purpose was to respect Shelley's original poetic intent. Allegory or myth Earl Wasserman believed that Prometheus personified "One Mind" among humanity, and thus "the drama is the history of the One Mind's evolution into perfection." Critical response Melvin Solve believed that Prometheus Unbound is so highly idealised and so remote from the conditions of life that the moral lesson is not essential to the enjoyment of the piece, and is, in fact, so well disguised that the critics have differed widely as to its interpretation. William Butler Yeats famously called it "among the sacred books of the world." Notes References Abrams, M. H. Natural Supernaturalism. New York: W. W. Norton & Company, 1973. Bloom, Harold. Shelley's Mythmaking. New Haven, 1959. Bodkin, Maud. Archetypal Patterns in Poetry. London: Oxford University Press, 1963. Brisman, Susan Hawk. "'Unsaying His High Language': The Problem of Voice in 'Prometheus Unbound'." Studies in Romanticism, Vol. 16, No. 1, Romanticism and Language (Winter, 1977), pp. 51–86. De Luca, V. A. "The Style of Millennial Announcement in Prometheus Unbound." Keats-Shelley Journal, Vol. 28, (1979), pp. 78–101. Grabo, Carl. A Newton Among Poets: Shelley's Use of Science in Prometheus Unbound. Chapel Hill, University of North Carolina Press, 1930. Grabo, Carl Henry. Prometheus Unbound: An Interpretation. New York: Gordian Press, 1968. Hughes, D. J. "Potentiality in